Botany 2002 Botany in the Curriculum: Integrating Research and Teaching August 2-4: Forum on Botanical Education & Outreach August 4-7: Annual Scientific Conference Pyle Conference Center University of Wisconsin Madison, Wisconsin Scientific Program

TUESDAY, 6 AUGUST

Presiding: ANNE BRUNEAU, Institut de recherche en biologie vegetale, UniversitÈ de MontrÈal, Quebec, Canada H1X 2B2. Tele: (514) 872-7301, E-mail: bruneaua@irbv.umontreal.ca .

8:00 22-1 FOREST, FELIX1*, ANNE BRUNEAU2, JULIE A HAWKINS3, TADASHI KAJITA4, JEFF J DOYLE5, and PETER R CRANE1. 1Royal Botanic Gardens Kew, Richmond, Surrey, UK; 2Univesite de Montreal, QC, Canada; 3University of Reading, UK; 4The University of Tokyo, Japan; 5Cornell University, Ithaca, NY. The sister of the Leguminosae revealed: phylogenetic relationships in the Fabales determined using trnL and rbcL sequences.

8:15 22-2 LUCKOW, MELISSA1*, JOSEPH T. MILLER2, DANIEL J. MURPHY3, and TATYANA LIVSHULTZ1. 1Cornell University, Ithaca, NY; 2University of Iowa, Iowa City; 3University of Melbourne, Parkville, Vic., Australia. A cladistic analysis of the subfamily Mimosoideae, Leguminosae, based on data from the chloroplast genes trnL and matK.

8:30 22-3 TUCKER, SHIRLEY C.1, BENTE B. KLITGAARD2, MARIE FOUGERE-DANEZAN3, and ANNE BRUNEAU3.* 1University of California, Santa Barbara; 2The Natural History Museum, London, UK; 3UniversitÈ de MontrÈal, QC, Canada. Phylogenetic analysis of combined floral ontogenetic and molecular characters in the Detarieae s.l. (Caesalpinioideae: Leguminosae).

8:45 22-4 JOHNSON, KATHLEEN M. and PATRICK S. HERENDEEN.* The George Washington University, Washington, DC. Diversity and phylogeny of the caesalpinioid legume subtribe Dialiinae.

9:00 22-5 MCMAHON, MICHELLE* and LARRY HUFFORD. Washington State University, Pullman. Floral diversification in the legume tribe Amorpheae.

9:15 22-6 JOLY, SIMON* and ANNE BRUNEAU. UniversitÈ de MontrÈal, QC, Canada. Multiple origins of autopolyploidy in Apios americana (Leguminosae: Papilionoideae) as revealed by genealogical analysis of the H3-D histone gene.

9:30 22-7 DOYLE, JEFF J.1*, JANE L. DOYLE1, JASON T. RAUSCHER1, and TONY (A. H. D.) BROWN2. 1Cornell University, Ithaca, NY; 2CSIRO Plant Industry, Canberra ACT, Australia. “New” nuclear genes and phylogenetic studies in Glycine.

9:45 22-8 ALLAN, G. J.1*, E. WENZEL1, J. FRANCISCO-ORTEGA2, and A. SANTOS-GUERRA3. 1Arcadia University, Glenside, PA; 2Florida International University, Miami, FL; 3JardÌn de AclimataciÛn de La Orotava, Tenerife, Canary Islands, Spain. Defining the geographic origin and evolution of Canary Island Lotus subgenus Pedrosia: Evidence based on ITS sequences of nuclear ribosomal DNA.

10:00 BREAK

10:15 22-9 MILLER, JOE. The University of Iowa, Iowa City. Apomictic and polyploid evolution in the Australian arid-zone mulga species complex (Acacia: Fabaceae).

10:30 22-10 KOLTERMAN, DUANE A.1* and HARVEY E. BALLARD2. 1University of Puerto Rico, Mayaguez; 2Ohio University, Athens. Genetic diversity and affinities of Caesalpinia monensis Britton in the Greater Antilles based on ISSR markers.

10:45 22-11 ZEREGA, NYREE J. C.1,2* and TIMOTHY J MOTLEY2. 1New York University, New York; 2The New York Botanical Garden, Bronx. Generic limits of Artocarpus as indicated by molecular data.

11:00 22-12 CROSS, HUGH B.1,2*, RAFAEL LIRA SAADE3, ISELA RODRIGUEZ AREVALO3, and TIMOTHY J. MOTLEY1. 1The New York Botanical Garden, Bronx; 2Columbia University, New York, NY; 3Universidad Nacional Autonoma de Mexico, Los Reyes Iztacala, Mexico. Intergeneric relationships and character evolution in the tribe Sicyeae (Cucurbitaceae).

11:15 22-13 FOREST, FELIX1*, VINCENT SAVOLAINEN1, MARK W CHASE1, ANNE BRUNEAU2, RICK LUPIA3, and PETER R CRANE1. 1Royal Botanic Gardens Kew, Richmond, Surrey, UK; 2Univesite de Montreal, Quebec, Canada; 3University of Oklahoma, Norman. Estimating divergence times in Betulaceae: nrDNA sequences, multiple calibration points, and confidence intervals.

11:30 22-14 MANOS, PAUL S.* and CHARLES H. CANNON. Duke University, Durham, NC. Phylogeography and reproductive biology of the paleotropical tree genus Lithocarpus (Fagaceae).

11:45 22-15 JENSEN, RICHARD J.1* and PATRICIA T. TOMLINSON2. 1Saint Mary's College, Notre Dame, IN; 2Berry College, Mount Berry, GA. Acorns and oak species.

12:00 22-16 MORRIS, ASHLEY B.*, MATTHEW A. GITZENDANNER, DOUGLAS E. SOLTIS, and PAMELA S. SOLTIS. University of Florida, Gainesville. A regional approach to a continental question: The importance of clonal structure and somatic mutation in the distribution and maintenance of a long-lived tree species.

Presiding: ROBERT J. REINSVOLD, Department of Biological Sciences, University of Northern Colorado, Greeley, CO 80639. Tele: (970) 351-2716, E-mail: rjreins@unco.edu .

8:00 23-1 HAZELWOOD, DONNA. Dakota State University, Madison, SD. Learning groups in botany laboratories.

8:15 23-2 SHIPMAN, J. S.*¹ and DIANE M. SMITH*². ¹MAKTAG School, Newmarket, NH; ²Bunker Hill Community College, Boston, MA. Scholarly publications at the community college: Using botany to teach information literacy and science research process skills.

8:30 23-3 WANDERSEE, JAMES H. Louisiana State University, Baton Rouge. A national public survey informing development of the LimitingCases™ teaching strategy.

8:45 DISCUSSION

9:00 BREAK

9:15 23-4 RICE, STANLEY A. Southeastern Oklahoma State University, Durant. North and south sides of trees: Teaching plasticity in a general botany laboratory.

9:30 23-5 SUNDBERG, MARSHALL D. Emporia State University, Emporia, KS. Using student-active investigations to overcome student misconceptions about evolution and natural selection.

9:45 23-6 BROWN, BEVERLY J. Nazareth College of Rochester, Rochester, NY. Investigative labs: Hands-on field experiences in pollination ecology.

10:00 DISCUSSION

10:15 BREAK

10:30 23-7 MICKLE, JAMES E.* and PATRICIA M. AUNE. North Carolina State University, Raleigh. A laboratory course in general biology for distance learners.

10:45 23-8 SNOW, NEIL. University of Northern Colorado, Greeley. Interactive computer keys as constructivist learning tools in biology.

11:00 23-9 WOLF, STEVEN J. California State University Stanislaus, Turlock. Using World Wide Web technologies in the classroom.

11:15 DISCUSSION

Presiding: SUSANNE S. RENNER, Department of Biology, University of Missouri-St. Louis, St. Louis, MO 63121. Tele: (314) 516-6272, E-mail: renner@umsl.edu .

8:30 24-1 TSOU, CHIH-HUA¹* AND SCOTT A. MORI². ¹Academia Sinica, Taipei, Taiwan, Republic of China; ²The New York Botanical Garden, Bronx. Seed coat anatomy and its relationship to seed dispersal in the Brazil nut Family (Lecythidaceae).

8:45 24-2 LOBOVA, TATYANA A.* AND SCOTT A. MORI. The New York Botanical Garden, Bronx. Cecropia fruits as a food resource for bats in French Guiana.

9:00 24-3 MANCERA, JOSE ERNESTO* AND ROBERT R. TWILLEY. University of Louisiana at Lafayette. Is mangrove organic matter a source of energy for consumers?

9:15 24-4 SILVERA, KATIA^1,2*, MARK W. WHITTEN¹, AND NORRIS H. WILLIAMS^1,2. ¹Florida Museum of Natural History, Gainesville; ²University of Florida, Gainesville. Variation in floral oil composition among neotropical orchids (Oncidiinae).

9:30 24-5 WIEMANN, MICHAEL C.¹* AND G. BRUCE WILLIAMSON². ¹USDA Forest Service, Madison, WI; ²Louisiana State University, Baton Rouge. Geographic variation in wood specific gravity.

Organized by: Russell L. Chapman, Louisiana State University, Baton Rouge, Tele: (225) 578-3457, E-mail: chapman@lsu.edu; Charles F. Delwiche, University of Maryland, College Park, E-mail: delwiche@umail.umd.edu; and Richard M. McCourt, Academy of Natural Sciences, Philadelphia, PA, Tele: (215) 299-1157, E-mail: mccourt@acnatsci.org .

Presiding: RUSSELL L. CHAPMAN, Louisiana State University, Baton Rouge.

8:15 25-1 CHAPMAN, RUSSELL L. Louisiana State University, Baton Rouge. Introduction.

8:30 25-2 MCCOURT, RICHARD, KENNETH G. KAROL, and CHARLES F. DELWICHE^, * ¹Academy of Natural Sciences, Philadelphia, PA; ²University of Maryland, College Park. The roots of land plants: Recent research on early-diverging lineages in the evolution of higher drier algae.

9:00 25-3 KAROL, KENNETH G.*, RICHARD M. MCCOURT², and CHARLES F. DELWICHE¹. ¹University of Maryland, College Park; ²Academy of Natural Sciences, Philadelphia, PA. Estimating divergence times within the Charophyta: A Bayesian approach using fossil and DNA sequence data.

9:30 25-4 DELWICHE, CHARLES, KENNETH KAROL and RICHARD MCCOURT. ¹University of Maryland, College Park; ²Academy of Natural Sciences, Philadelphia, PA. One small step: Why did the charophytes have the right stuff?

10:00 BREAK

10:30 25-5 TURMEL, MONIQUE*, CHRISTIAN OTIS, JEAN-CHARLES DE CAMBIAIRE, JEAN-FRANCOIS POMBERT, and CLAUDE LEMIEUX. UniversitÈ Laval, QuÈbec, Canada. The chloroplast genome sequence of Chlorokybus atmophyticus: Evidence that charophycean green algae from an early-diverging lineage adapted to terrestrial life.

11:00 25-6 LEWIS, LOUISE, A. University of Connecticut, Storrs. Numerous transitions to land in green plants: The `other' land plants.

11:30 25-7 COOK, MARTHA E.¹* and LINDA E. GRAHAM². ¹Illinois State University, Normal; ²University of Wisconsin, Madison. Origin and early evolution of plant body symmetry and gravity responses.

Organized by: CHRISTOPHER H. HAUFLER, Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 66045. Tele: (785) 864-3255, E-mail: vulgare@ku.edu .

Presiding: CHRISTOPHER H. HAUFLER, University of Kansas, Lawrence.

8:15 26-1 HAUFLER, CHRISTOPHER H. University of Kansas, Lawrence. Remembering Charlie.

8:30 26-2 SOLTIS, DOUGLAS E.* and PAMELA S. SOLTIS. University of Florida, Gainesville. Recent allopolyploidy in Tragopogon (Asteraceae): Genetic, genomic, and physiological comparisons.

9:00 26-3 FARRAR, DONALD R.¹* and MARY C. STENSVOLD². ¹Iowa State University, Ames; ²USDA Forest Service, Sitka, Alaska. Allopolyploid speciation in Botrychium-Charlie was right! (and so were we).

9:30 26-4 SCHNELLER, JAKOB. University of Z¸rich, Switzerland. The Athyrium filix-femina complex: A fascinating group to study evolutionary processes. Facts and prospects.

10:00 BREAK

10:15 26-5 VOGEL, JOHANNES¹*, HARALD SCHNEIDER^2,3, MARY GIBBY⁴, ISTVAN PINTER⁵, STEVE TREWICK⁶, MARY MORGAN-RICHARDS⁶, JOHN BARRETT⁷, STEPHEN RUSSELL¹, SALLY HENDERSON¹, and FRED RUMSEY¹. ¹The Natural History Museum, London, UK; ²University of Goettingen, Germany; ³Duke University, Durham, NC; ⁴Royal Botanic Garden Edinburgh, Scotland; ⁵Eoetvoes Lorand University, Budapest, Hungary; ⁶University of Canterbury, Christchurch, New Zealand; ⁷University of Cambridge, UK. Polyploidy, phylogeography and Pleistocene refugia of the rockfern Asplenium ceterach: Evidence from cpDNA and allozymes.

10:45 26-6 SCHNEIDER, HARALD^1,2*, JOHANNES VOGEL³, MARY GIBBY⁴, STEPHEN RUSSELL³, CYMON COX², SALLY HENDERSON³, FREEK BAKKER⁵, and FRED RUMSEY³. ¹University of Goettingen, Germany; ²Duke University, Durham, NC; ³Natural History Museum, London, UK; ⁴Royal Botanic Garden Edinburgh, Scotland; ⁵National Herbarium Netherlands, Wageningen University Branch, The Netherlands. Reticulation in Asplenium - new insights from phylogeny.

11:15 26-7 STEIN, DIANA B.¹*, CYNTHIA HUTTON¹, DAVID S. CONANT², and CHARLES R. WERTH³. ¹Mount Holyoke College, South Hadley, MA; ²Lyndon State College, Lyndonville, VT; ³Deceased. Molecular evidence for a Dryopteris semicristata genome.

11:45 26-8 SPEER, WILLIAM D.¹*, CHARLES R. WERTH², ELIZABETH SHEFFIELD³, and PAUL G. WOLF¹. ¹Utah State University, Logan; ²Deceased; ³Manchester University, UK. North American Pteridium: Insights on population structure and systematic relationships from morphology, isozymes, and chloroplast DNA.

Organized by: RICHARD RABELER, University of Michigan Herbarium, Ann Arbor, MI 48108-2288. Tele: (734) 615-6200, E-mail: rabeler@umich.edu; and MOLLY NEPOKROEFF, University of South Dakota, Vermillion, SD. Tele: (605) 677-6178, E-mail: mnepokro@usd.edu .

Presiding: RICHARD RABELER, University of Michigan, Ann Arbor.

8:15 27-1 RABELER, RICHARD K.1* and MOLLY NEPOKROEFF2. 1University of Michigan Herbarium, Ann Arbor; 2University of South Dakota, Vermillion. Systematics and evolution of the Caryophyllaceae: A model family for integrating taxonomic, phylogenetic, and population studies.

8:30 27-2 RABELER, RICHARD K. University of Michigan Herbarium, Ann Arbor. Relationships within the Caryophyllaceae: Past and present.

8:45 27-3 NEPOKROEFF, MOLLY1*, WARREN L. WAGNER2, RICHARD K. RABELER3, ELIZABETH A. ZIMMER2, STEPHEN G. WELLER4, and ANN K. SAKAI4. 1University of South Dakota, Vermillion; 2Smithsonian Institution, Washington, DC; 3University of Michigan Herbarium, Ann Arbor; 4University of California, Irvine. Relationships within Caryophyllaceae inferred from molecular sequence data.

9:00 27-4 OXELMAN, BENGT. Uppsala University, Sweden. Phylogenetic relationships within Sileneae and its implications on taxonomy.

9:15 27-5 POPP, MAGNUS. Uppsala University, Sweden. Polyploid evolution in Silene.

9:30 27-6 EGGENS, FRIDA. Uppsala University, Sweden. Taxonomy and molecular systematics of Silene sect. Rigidulae.

9:45 DISCUSSION

10:00 BREAK

10:15 27-7 NEPOKROEFF, MOLLY1, WARREN L. WAGNER2*, STEVEN G. WELLER3, PAMELA S. SOLTIS4, ELIZABETH A. ZIMMER2, ANN K. SAKAI3, and DOUGLAS E. SOLTIS4. 1University of South Dakota, Vermillion; 2Smithsonian Institution, Washington, DC; 3University of California, Irvine; 4University of Florida, Gainesville. Origin and diversification of the endemic Hawaiian genus Schiedea (Caryophyllaceae subfamily Alsinoideae) inferred from combined molecular and morphological data.

10:30 27-8 CULLEY, THERESA M.1,2*, ANN K. SAKAI1, STEPHEN G. WELLER1, and DIANE R. CAMPBELL1. 1University of California, Irvine; 2University of Cincinnati, OH. The quantitative genetics of sex allocation in gynodioecious Schiedea salicaria (Caryophyllaceae).

10:45 27-9 DELPH, LYNDA F. Indiana University, Bloomington. Unexpected mitochondrial sequence diversity in natural populations of Silene acaulis.

11:00 27-10 MCNEILL, JOHN. Royal Botanic Garden, Edinburgh, Scotland, UK. Summary comments: Generic relationships: A synthesis of morphological and molecular data.

11:15 DISCUSSION

Presiding: Jeffrey L. Walck, Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132. Tele: (615) 904-8390, E-mail: jwalck@mtsu.edu .

8:15 28-1 Walck, Jeffrey L. * and Siti N. Hidayati. Middle Tennessee State University, Murfreesboro. The influence of light during dormancy release on germination of Schoenolirion croceum (Hyacinthaceae) seeds.

8:30 28-2 Gibson, J. Phil* and E. Cayenne Engel. Agnes Scott College, Decatur, IL. Pericarp characteristics and the expression of heterocarpy in Grindelia ciliata (Asteraceae).

8:45 28-3 Hawkins, Tracy S*, Carol C. Baskin, and Jerry M. Baskin. University of Kentucky, Lexington. Dormancy breaking requirements in seeds of two eastern- and one western-North American species of Angelica (Apiaceae).

9:00 28-4 Richardson, Charles R.*, Mike Bowlin, and D. Nicholas Mc Letchie. University of Kentucky, Lexington. Differences in early life-history traits of two propagule types in the liverwort Marchantia inflexa.

9:15 28-5 Niklas, Karl J.¹* and Brian J. Enquist². ¹Cornell University, Ithaca, NY; ²University of Arizona, Tucson. Predicting reproductive biomass based on seed plant vegetative biomass partitioning patterns.

9:30 28-6 Adams, Christopher A.*, Jerry M. Baskin, and Carol C. Baskin. University of Kentucky, Lexington. Vegetative and floral morphology, flowering phenology, and life cycle type of Grindelia lanceloata (Asteraceae) from cedar glades in middle Tennessee and northern Alabama: A common garden study.

9:45 Discussion

10:00 Break

Presiding: Charles R. Richardson, T.H. Morgan School of Biology, University of Kentucky, Lexington, KY, 40502. Tele: (859) 257-6786, E-mail: crrich2@uky.edu.

10:15 28-7 Ganger, Mike T. Massachusetts College of Liberal Arts, North Adams. Reproductive success and genet development in a clonal herb: The case for context.

10:30 28-8 Faivre, Amy E. Cedar Crest College, Allentown, PA. Reproductive biology of seven understory Psychotria species on Barro Colorado Island, Panama.

10:45 28-9 Molano-Flores, Brenda. Illinois Natural History Survey, Champaign. The impact of insect flower/fruit herbivory in Eryngium yuccifolium (Apiaceae) native and restored populations.

11:00 28-10 Byers, Diane L.* and Aaron Warsaw. Illinois State University, Normal. The fragmentation of prairie environments and the consequences for a gynodioecous species, Lobelia spicata.

11:15 28-11 Steven, Janet* and Don Waller. University of Wisconsin, Madison. Resource allocation to sex function in wind- and insect-pollinated species of Thalictrum (Ranunculaceae).

11:30 Discussion

Presiding: WILLIAM R. ANDERSON, University of Michigan Herbarium, Ann Arbor, MI 48108-2287. Tele: (734) 764-2432, E-mail: wra@umich.edu .

8:30 29-1 ANDERSON, WILLIAM R. University of Michigan, Ann Arbor. Dioecy in the Malpighiaceae.

8:45 29-2 ABDUL-SALIM, KOBINAH. Harvard University, Cambridge, MA. “Out of Africa” revisited: Developments in the systematics of Symphonia (Clusiaceae), with implications for biogeography.

9:00 29-3 WEBSTER, GRADY L.* and KEVIN J. CARPENTER. University of California, Davis. Pollen morphology and phylogeny in Euphorbiaceae, subtribe Flueggeinae.

9:15 29-4 WURDACK, KENNETH J.1* and MARK W. CHASE2. 1Smithsonian Institution, Washington, DC; 2Royal Botanic Gardens, Kew, Richmond, UK. Phylogenetics of Euphorbiaceae s.s. using plastid (rbcL and trnL-F) DNA sequences.

9:30 29-5 BERRY, PAUL E.1*, ANDREW L. HIPP1, and KENNETH J. WURDACK2. 1University of Wisconsin, Madison; 2The New York Botanical Garden, Bronx. Molecular phylogeny and floristics of Croton (Euphorbiaceae), a giant genus.

9:45 29-6 CORTES-PALOMEC, AUREA* and HARVEY BALLARD. Ohio University, Athens. Isolation mechanisms and gene flow between co-occurring species of Mexican Viola (Violaceae).

10:00 BREAK

10:15 29-7 PORTER-UTLEY, KRISTEN E.* and WALTER S. JUDD. University of Florida, Gainesville. Phylogenetic relationships within Passiflora L. Section Cieca (Medikus) DC. (Passifloraceae).

10:30 29-8 KROSNICK, SHAWN E.* and JOHN V. FREUDENSTEIN. Ohio State University, Columbus. Phylogenetic relationships within Passiflora supersection Disemma.

10:45 29-9 LEVIN, RACHEL A.1*, WARREN L. WAGNER1, PETER C. HOCH2, MOLLY NEPOKROEFF3, J. CHRIS PIRES4, ELIZABETH A. ZIMMER1, and KENNETH J. SYTSMA4. 1Smithsonian Institution, Washington, DC; 2Missouri Botanical Garden, St. Louis; 3University of South Dakota, Vermillion; 4University of Wisconsin, Madison. Phylogenetic relationships of Onagraceae based on chloroplast rbcL and ndhF data.

11:00 29-10 SALYWON, ANDREW1*, NEIL SNOW2, and LESLIE R. LANDRUM1. 1Arizona State University, Tempe; 2University of Northern Colorado, Greeley. Phylogenetic relationships of the berry fruited Myrtaceae as inferred from ITS sequences.

11:15 29-11 STONE, R. DOUGLAS* and BRUCE G. BALDWIN. University of California, Berkeley. ITS and ETS sequence data support the recognition of four Old World genera in Melastomataceae subfamily Memecyloideae.

11:30 29-12 MICHELANGELI, FABIAN A. American Museum of Natural History, New York, NY. Phylogenetic relationships in the Miconieae: Evidence from morphological and ITS sequence data.

11:45 29-13 JUDD, WALTER S. University of Florida, Gainesville. Systematics of Antillean species of Miconia sect. Chaenopleura (Melastomataceae, Miconieae).

Presiding: Mary Louise Trivett, Department of Environmental & Plant Biology, Ohio University, Athens, OH 45701-2959. Tele: (740) 593-1129, E-mail: trivett@ohio.edu .

8:30 30-1 PIGG, KATHLEEN B.*, MELANIE L. DEVORE, and MARIA TCHEREPOVA. Arizona State University, Tempe, and Georgia College & State University, Milledgeville. Late Paleocene permineralized follicle from Almont, North Dakota with potential ranunculoid affinities.

8:45 30-2 TRIVETT, M. L.*, G. W. ROTHWELL, and R. A. STOCKEY. Ohio University, Athens, and University of Alberta, Edmonton, Canada. A permineralized schizaeaceous fern from the Late Eocene of Vancouver Island, British Columbia, Canada.

9:00 30-3 MANCHESTER, STEVEN R.* and ZLATKO KVACEK. Florida Museum of Natural History, Gainesville, and Charles University, Prague, Czech Republic. Vegetative and reproductive structure of Platanus neptuni (Platanaceae) from the Tertiary of Europe and western North America.

9:15 30-4 MANCHESTER, STEVEN* and ZHIDUAN CHEN. Florida Museum of Natural History, Gainesville, and Chinese Academy of Sciences, Beijing, China. Middle Eocene leaves and fruits of Huadian, Jilin Province, Northeastern China.

9:30 BREAK

9:45 30-5 DEVORE, MELANIE L*, KATHLEEN B. PIGG, AMANDA M. WESTBROOK, and EVERETTE BARMAN. Georgia College & State University, Milledgeville, and Arizona State University, Tempe. Galling cynipids, larval traces, and fungal infestations from the Miocene of Washington.

10:00 30-6 GROTE, PAUL J. Suranaree University of Technology, Nakhon Ratchasima, Thailand. Tertiary floras of Northern Thailand: Additional conifer diversity from charcoalified wood.

10:15 30-7 BUECHLER, WALTER K. Boise, Idaho. A revision of Salix hesperia (Knowlton) Condit and allied species.

10:30 30-8 ROBERTSON, EDDIE B.*, PHILIP A. GENSLER, and KELLY LENZIE. Reinhardt College, Waleska, GA, and Hagerman Fossil Beds National Monument, Hagerman, ID. Diatoms, pollen and spores of the aquicludes within the Hagerman Fossil Beds National Monument, Hagerman, Idaho.

10:45 BREAK

11:00 30-9 WIEMANN, MICHAEL C.*, ELISABETH A. WHEELER, STEVEN R. MANCHESTER, and DAVID L. DILCHER. USDA, Madison, WI, North Carolina State University, Raleigh, and Florida Museum of Natural History, Gainesville. Modern and Eocene temperature estimation from leaf morphology and wood anatomy.

11:15 30-10 KRIEGER, JONATHAN D.*, ROBERT P. GURALNICK, and KIRK R. JOHNSON. University of Colorado-Boulder, and Denver Museum of Natural History and Earth Science, Denver, CO. Morphometric analysis of extant and fossil leaf assemblages.

11:30 30-11 TAGGART, RALPH E.* and AUREAL T. CROSS. Michigan State University, East Lansing. Paleolimnology of Paleogene Lake Florissant (Colorado) and the preservation of insects, leaves, and wood.

11:45 30-12 JACOBS, BONNIE F.* and DAVID J. MELTZER. Southern Methodist University, Dallas, TX. A palynological and paleoecological record associated with the late Pleistocene Folsom Paleoindian type site, northeastern New Mexico.

Presiding: DENNIS M. HANISAK, Harbor Branch Oceanographic Institution, Fort Pierce, FL; and MORGAN L. VIS. Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701.

8:30 31-1 BELL, ROBERT A. University of Wisconsin, Stevens Point. Phytoplankton community composition in the Tri-Lakes area of central Wisconsin, USA.

8:45 31-2 EDLUND, MARK B.¹*, LAURA TRIPLETT and DANIEL R. ENGSTROM¹. ¹Science Museum of Minnesota, St. Croix; ²University of Minnesota, Minneapolis. Post-European sedimentation and nutrient loading in Lake St. Croix, a natural impoundment on the St. Croix River, USA.

9:00 31-3 FAWLEY, KAREN P.* and MARVIN W. FAWLEY. North Dakota State University, Fargo. Differences among coccoid green algal communities in Minnesota and North Dakota lakes.

9:15 31-4 GRAHAM, JAMES M.*, ANGELA D. KENT, GEORGE H. LAUSTER, ANTHONY C. YANNARELL, LINDA E. GRAHAM, TIMOTHY K. KRATZ, and ERIC W. TRIPLETT. University of Wisconsin, Madison. Species diversity of microbial communities in a northern temperate humic lake.

9:30 31-5 HAMBROOK, JULIE A. U.S. Geological Society, Columbus, OH. Bioassessment of stream-water quality using benthic and planktonic algae collected along an urban intensity gradient in the Eastern Cornbelt Plains Ecoregion, Ohio, USA.

9:45 31-6 HAMSHER, SARAH E. ¹*, DALE A. CASAMATTA¹, NANDA R. FILKIN¹, AMY S. MCCLINTIC¹, WAYNE B. CHIASSON¹, ROBERT G. VERB², and MORGAN L. VIS¹. ¹Ohio University, Athens; ²Ohio Northern University. A new method for studying nutrient limitation of periphyton: A case study from acid mine drainage streams.

10:00 BREAK

10:15 31-7 Henkel, Sarah K.* and Steven Murray. California State University Fullerton. Morphological variation and patterns of reproduction and recruitment in lower intertidal populations of the kelp Egregia menziesii (Turner) Areschoug.

10:30 31-8 FILKIN, NANDA R. ¹*, ALISON R. SHERWOOD², AND MORGAN L. VIS¹. ¹Ohio University, Athens; ²University of Hawaii, Manoa. Macroalgae of the Hawaiian Islands: 23 additional stream segments.

10:45 31-9 HANISAK, M. DENNIS. Harbor Branch Oceanographic Institution, Fort Pierce, FL. Impacts of reduced salinity on seagrasses in Indian River Lagoon.

11:00 31-10 WYNNE, MICHAEL J. University of Michigan, Ann Arbor. Highlights of recent collections of marine algae from the Sultanate of Oman.

11:15 31-11 YARISH, CHARLES*, PEIMIN HE, RAQUEL CARMONA, SHILI LIU, GEORGE KRAEMER, CHRISTOPHER NEEFUS, THIERRY CHOPIN, GEORGE NARDI, JOHN CURTIS, SHERRY LONERGAN, and PAUL TRUPP. University of Connecticut, Stamford; Fisheries College, Shanghai Fisheries University, Shanghai, China; University of Connecticut, Storrs; State University of New York, Purchase; University of New Hampshire, Durham; University of New Brunswick, Saint John, New Brunswick, Canada; GreatBay Aquaculture, LLC, Portsmouth, NH; Bridgeport Regional Vocational Aquaculture School, Bridgeport, CT. The aquaculture of Porphyra leucosticta (Rhodophyta) for an finfish/seaweed recirculating aquaculture system in an urban application.

11:30 31-12 JULIUS, M. L. St. Cloud State University, St. Cloud, MN. Relationship between periodic resuspension events and planktonic diatom community structure in Lake Michigan: A field and laboratory investigation.

11:45 31-13 DAVIS, B. E. ¹*, S. J. INTERLANDI², S. S. KILHAM², AND E. C. THERIOT¹. ¹University of Texas, Austin; ²Drexel University, Philadelphia, PA. Effects of sampling scale and analysis method on perceptions of phytoplankton species associations.

Presiding: ROBERT W. KORN, Biology Department, Bellarmine University, 2001 Newburg Road, Louisville, KY. Tele: (502) 452-8200, E-mail: rkorn@bellarmine.edu .

9:00 32-1 TSOU, CHIH-HUA and YU-LAN FU. Academica Sinica, Taipei, Republic of China. Tetrad pollen formation in Annona (Annonaceae): The binding mechanism.

9:15 32-2 GHOSH, NABARUN, A. CHATTERJEE, and DON W. SMITH. University of Calcutta, India; West Texas A & M University, Canyon. Acacia, Albizia, Cassia, and Dalbergia: Seed anatomy with light and scanning electron microscopy.

9:30 32-3 MIKESELL, JAN E. Gettysburg College, Gettysburg, PA. Herbivory and enhancement of plant fitness.

9:45 32-4 WILSON, TREVOR C. and USHER POSLUSZNY. University of Guelph, Ontario, Canada. A comparative morphological and anatomical study on tendrils of Parthenocissus quinquefolia Planch. and Parthenocissus tricuspidata (Sieb. & Zucc.) Planch.

10:00 32-5 WELCH, JAIME, BETH DORIS, JAMES L. SEAGO, and LELAND C. MARSH. State University of New York, Oswego. Responses of Typha glauca plants to increased salinities.

10:15 BREAK

10:30 32-6 ZENDEJAS L"PEZ, PATRICIA, GUILLERMO ANGELES, JORGE L"PEZ-PORTILLO, and FERNNADO ORTEGA-ESCALONA. Universidad Nacional AutÛnoma de MÈxico, Ciudad Universitaria, MÈxico; Instituto de EcologÌa, Xalapa, Veracruz, MÈxico. Stem anatomy of Urera caracasana and U. eggersii (Urticaceae) in relation to their water storage capacity.

10:45 32-7 KORN, ROBERT W. Bellarmine University, Louisville, KY. Computer graphics simulation of the dicot stem apex.

11:00 32-8 LEE, DAVID W., JOHN O'KEEKE, N. MICHELLE HOLBROOK, and TAYLOR FEILD. Florida International University, Miami; Harvard University, Cambridge, MA. Pigment dynamics and autumn leaf senescence in a New England forest.

11:15 32-9 MCKOWN, ATHENA and NANCY G. DENGLER. University of Toronto, Toronto, Ontario, Canada. Kranz anatomy and leaf vein pattern of C3, C4 and C3-C4 Flaveria (Asteraceae) species.

11:30 32-10 KANG, JULIE and NANCY G. DENGLER. University of Toronto, Toronto, Ontario, Canada. Cell cycling frequency and expression of the homeobox gene ATHB-8 during leaf vein development in Arabidopsis.

11:45 32-11 BOYCE, C. KEVIN. Harvard University, Cambridge, MA. Evolution of leaf morphology and development in extant plants and the fossil record.

Presiding: SUSANNE S. RENNER, Department of Biology, University of Missouri-St. Louis, St. Louis, MO 63121. Tele: (314) 516-6272, renner@umsl.edu.

Presiding: PHIL GIBSON, Department of Biology, Agnes Scott College, Decatur, GA 30030. Tele: (404) 471-6267, E-mail: pgibson@agnesscott.edu.

Presiding: JOE GERRATH, 70 Dumbarton St., N1E 3T6, Canada. Tel: (519) 822-1964

Posters will be displayed from Monday morning, 5 August through Wednesday afternoon, 7 August. Presenters will be available to field questions and discuss their posters from 12:30 pm to 2:00 pm on Tuesday, 6 August.

CONTRIBUTED POSTERS: AFS/ Pteridological Section, BSA –

33-1 DOOLEY, MELISSA A.* and LUCINDA J. SWATZELL. Southeast Missouri State University, Cape Girardeau. Porosity and specific retention of Emminence-Potosi Dolomite Limestone from Cheilanthes feei habitat in southeast Missouri.

33-2 MEHLTRETER, K. V.*, P. ROJAS, and M. PALACIOS-RIOS. Instituto de Ecologia, Xalapa, Veracruz, Mexico. Herbivory and ant-colonization of the mangrove fern Acrostichum danaeifolium.

33-3 ROMINE, JOSEPH D.* and LUCINDA J. SWATZELL. Southeast Missouri State University, Cape Girardeau. Characterization of cytoskeletal proteins in the negatively phototropic gametophyte of Schizaea pusilla.

33-4 TOWILL, LESLIE R. Arizona State University, Tempe. Characterization of proteins in spores of the fern Ceratopteris richardii.

CONTRIBUTED POSTERS: ASPT / Systematics Sections, BSA & CBA/ABC -

33-5 KIRCHOFF, BRUCE. University of North Carolina, Greensboro. Wholes and parts: Science and art as complements.

33-6 RENNER, SUSANNE S.* and ARUNA WEERASOORIYA. University of Missouri-St. Louis. Roles of Gondwana break-up and transoceanic dispersal in the evolution of Hernandiaceae.

33-7 LI, JIANHUA1,2* and DONGLIN ZHANG2. 1Arnold Arboretum, Jamaica Plain, MA; 2University of Maine, Orono. Phylogeny and biogeography of eastern Asian-North American disjunct genera Thuja and Chamaecyparis (Cupressaceae) inferred from sequences of nrDNA ITS region.

33-8 GERMANO, JOSELLE1, MARGARET COX2, WESLEY A. WRIGHT2, MATTHEW P. ARSENAULT2, ANITA S. KLEIN1, and CHRISTOPHER S. CAMPBELL2.* 1University of New Hampshire, Durham; 2University of Maine, Orono. A chloroplast DNA phylogeny of Picea (Pinaceae).

33-9 NIEHAUS, KRISTI1, KHIDIR HILU1*, JOHN H. WIERSEMA2, and THOMAS BORSCH3. 1Virginia Polytechnic Institute and State University, Blacksburg; 2USDA/ARS, Beltsville, MD; 3Friedrich-Wilhelms-Universit”t Bonn, Germany. Patterns of variation and evolution of Nymphaea odorata (Nymphaeaceae) assessed by molecular and morphological information.

33-10 RENNER, SUSANNE S.* and ARUNA WEERASOORIYA. University of Missouri-St. Louis. Phylogeny of Pistia and its 16 closest generic relatives among Aroideae.

33-11 RENNER, SUSANNE S.1*, ARUNA WEERASOORIYA1, GUY GUSMAN2, and JIN MURATA3. 1University of Missouri-St. Louis; 2Universite Libre de Bruxelles, Brussels; 3The University of Tokyo, Japan. Phylogeny and evolution of Arisaema (Araceae).

33-12 BUZGO, MATYAS1*, YIN-LONG QIU2, and MARK W. CHASE3. 1University of Florida, Gainesville; 2University of Massachusetts, Amherst; 3Royal Botanical Gardens, Kew, Richmond, Surrey, UK. ITS in Arisaema (Araceae).

33-13 RODRIGUEZ, AARON* and LUIS ORTIZ-CATEDRAL. University of Guadalajara, Mexico. Cytology and pollen morphology of Ainea conzatii and Cardiostigma hintonii (Tigridieae: Iridaceae) and their phylogenetic consequences.

33-14 KARST, LISA D.* and CAROL A. WILSON. Portland State University, Portland, OR. Genetic variation in the rare endemic Sisyrinchium sarmentosum (Iridaceae) based on RAPDs.

33-15 WHITTEN, W. MARK1*, NORRIS H. WILLIAMS1, ROBERT L. DRESSLER1, and JOHN T. ATWOOD2. 1Florida Museum of Natural History, Gainesville; 2Marie Selby Botanical Gardens, Sarasota, FL. Generic relationships in Zygopetalinae and Maxillariinae (Orchidaceae).

33-16 MCMILLAN, ERIN and GENLOU SUN.* Saint Mary's University, Halifax, Nova Scotia, Canada. Molecular phylogeny of Elymus tetraploid species using PCR-RFLP analysis of specific chloroplast genes.

33-17 SAARELA, JEFFERY M.1*, PAUL M. PETERSON2, ROBERT J. SORENG2, and RALPH E. CHAPMAN3. 1University of Alberta, Edmonton, Canada; 2Smithsonian Institution, Washington, DC. Taxonomy of the grass Brachyelytrum (Poaceae).

33-18 PRINCE, LINDA M. Rancho Santa Ana Botanic Garden, Claremont, CA. Investigation of a Group I intron invasion of the mitochondrial coxI gene in Zingiberales.

33-19 KIM, SANGTAE1*, DOUGLAS E. SOLTIS1, PAMELA S. SOLTIS2, and YOUNGBAE SUH2. 1University of Florida. Gainesville; 2Seoul National University, Korea. An ndhF sequence from a Miocene Magnolia.

33-20 GORDON, AMANDA*, ADAM R. BENNETT, RICHARD B. HUNTER, and KIMBERLY L. HUNTER. Salisbury University, MD. Phylogenetic analysis of the genus Amaranthus using ISSR markers.

33-21 KADEREIT, GUDRUN1*, THOMAS BORSCH2, KURT WEISING3, and HELMUT FREITAG3. 1Johannes Gutenberg-Universitaet Mainz, Germany; 2Friedrich-Wilhelms-Universitaet Bonn, Germany; 3Universitaet Kassel, Germany. Phylogeny of Amaranthaceae and Chenopodiaceae and the evolution of C4-photosynthesis.

33-22 KEELING, STEPHANIE DIANA* and MARK E. MORT. University of Kansas, Lawrence. Mechanisms of asexual reproduction in Crassulaceae.

33-23 FAIRFIELD, KRISTOPHER N.1*, MARK E. MORT1, and ARNOLDO SANTOS-GUERRA2. 1University of Kansas, Lawrence; 2Jardin de Alimatacion de la Orotava, Puerto de la Cruz, Tenerife, Canary Islands, Spain. Phylogenetics and evolution of Aichryson (Crassulaceae) inferred from multiple DNA data sets.

33-24 PALMER, ANNIE ROSE*, MARK E. MORT, and KRISTOPHER N. FAIRFIELD. University of Kansas, Lawrence. Preliminary insights into the monophyly and position of Villadia (Crassulaceae) based on DNA sequence data.

33-25 KEELING, STEPHANIE DIANA*, MARK E. MORT, and KRISTOPHER N. FAIRFIELD. University of Kansas, Lawrence. Phylgenetic relationships and the evolution of the Acre Clade of Crassulaceae inferred from cpDNA spacer and nuclear ribosomal ITS sequence data.

33-26 ALFORD, MAC H. Cornell University, Ithaca, NY. Systematics of the tribe Prockieae (Flacourtiaceae).

33-27 WATSON, LINDA E.1*, HANAA EL-SHAZLY1,2, HANAN SAYED-AHMED3, MICHAEL A. VINCENT1, and ABDELFATTAH BADR1,3. 1Miami University, Oxford, OH; 2Ains Shams University, Cairo, Egypt; 3Tanta University, Egypt. Molecular phylogeny of Old World Trifolium (Fabaceae).

33-28 YOON, MUN SUP, JEONGRAN LEE*, HYUNG JIN BAEK, EUN GI CHO, and CHANG YUNG KIM. National Institute of Agricultural Biotechnology, Suwon, Korea. Relationships of Vigna angularis (Willd.) Ohwi & Ohashi and its relatives from Korea based on AFLP markers.

33-29 TORKE, BENJAMIN M.* and BARBARA A. SCHAAL. Washington University, St. Louis, MO. Phylogeny and evolution of Swartzia, based on chloroplast and nuclear sequences.

33-30 TALENT, NADIA* and TIMOTHY A. DICKINSON. Royal Ontario Museum, Toronto, Canada; University of Toronto, Canada. Fruit and seed formation from inter-ploidy and intersectional pollination in Crataegus (Rosaceae).

33-31 RENNER, SUSANNE S.1*, ARUNA WEERASOORIYA1, and MARK E. OLSON2. 1University of Missouri-St. Louis; 2Universidad Nacional Autonoma de Mexico. Phylogeny of Cucurbitaceae inferred from multiple chloroplast loci.

33-32 CHUNG, SANG-MIN1*, DEENA S. DECKER-WALTERS2, and JACK E. STAUB1. 1University of Wisconsin, Madison; 2The Cucurbit Network, Miami, FL. Evaluation of relationships within the tribe Benincaseae (Cucurbitaceae) using cpDNA microsatellite fragment length variation and comparison of the sequenced fragments.

33-33 YOO, KI-OUG1* and JUN WEN2. 1Kangwon National University, Korea; 2The Field Museum of Natural History, Chicago, IL. Phylogeny of Carpinus and subfamily Coryloideae (Betulaceae).

33-34 PFEIL, BERNARD E.1,2*, C. L. BRUBAKER1, L. A. CRAVEN1, and M. D. CRISP2. 1CSIRO Plant Industry, Canberra, Australia; 2Australian National University, Canberra, Australia. Gene duplication, allopolyploidy and pseudogenes: analysis of rpb2 low-copy nDNA sequences in Malvaceae.

33-35 ZIMMER, ELIZABETH ANNE1*, GERARD ALLAN1,2, ANDREW MEDINA-MARINO1,3, and WARREN L. WAGNER1. 1Smithsonian Institution; 2Arcadia University; 3Caltech. Origin and biogeography of Hawai`ian Melicope.

33-36 TRIFT, IDA1* and ARNE A. ANDERBERG2. 1Stockholm University, Sweden; 2Swedish Museum of Natural History, Stockholm, Sweden. The phylogeny of Dionysia as a part of Primula explored by analysis of rbcL, ITS, rps and trnL.

33-37 GOTTSCHLING, MARC*, HARTMUT H. HILGER, and NADJA DIANE. Freie Universitaet Berlin, Germany. The secondary structure of the ITS1 transcript and its application for reconstruction phylogeny.

33-38 STRUWE, LENA1*, JASON R. GRANT2, and KATHERINE R. GOULD3. 1Rutgers University, New Brunswick, NJ; 2Universite de Neuchatel, Switzerland; 3Austin Peay State University, Clarksville, TN. Coronas and curved stamens: Shape, size, and color in the floral evolution of tribe Helieae (Gentianaceae; Asteridae).

33-39 FRASIER, CYNTHIA L.1*, VICTOR A. ALBERT2 anD LENA STRUWE1. 1Rutgers University, New Brunswick, NJ; 2University of Oslo, Norway. Comparison of biogeographic and phylogenetic patterns in a medicinally important gentian genus in Latin America (Potalia; Gentianaceae-Potalieae).

33-40 SMICK, GEOFF A. San Francisco State University, CA. Molecular phylogeny of Streblacanthus (Acanthaceae) with notes on morphology.

33-41 LI, JIANHUA1* and MICHAEL J. DONOGHUE2. 1Arnold Arboretum, Jamaica Plain, MA; 2Yale University, New Haven, CT. Phylogenetics of Lonicera (Caprifoliaceae) based on sequences of internal transcribed spacer region of nuclear ribosomal DNA.

33-42 KOOPMAN, MARGARET M.* and TINA J. AYERS. Northern Arizona University, Flagstaff. Molecular evidence supports the resurrection of the genus Heterotoma (Campanulaceae: Lobelioideae).

33-43 MORT, MARK E.1*, ELIZABETH ESSELMAN2, DANIEL J. CRAWFORD1, ARNOLDO SANTOS-GUERRA3, ANDREA D. WOLFE4, and JAVIER FRANCISCO-ORTEGA5. 1University of Kansas, Lawrence; 2Southern Illinois University at Edwardsville; 3Jardin de Aclimatacion de la Orotava, Puerto de la Cruz, Tenerife, Canary Islands, Spain; 4The Ohio State University, Columbus; 5Florida International University, Miami. Relationships among the Canarian Tolpis (Asteraceae: Lactuceae) species inferred from analyses of intersimple sequence repeats (ISSRs).

33-44 MAYFIELD, MARK H.* and CAROLYN J. FERGUSON. Kansas State University, Manhattan. Development of a phylogenetic framework for taxonomic and evolutionary studies of Liatris (Eupatorieae, Asteraceae).

33-45 TANCIG, MARK1*, ANNIE SHERWOOD2, DOUGLAS SOLTIS1, PAMELA S. SOLTIS1, and MATTHEW GITZENDANNER1. 1University of Florida, Gainesville; 2Washington State University, Pullman. Phylogeny of Tragopogon (Asteraceae) using ITS and ETS molecular data.

33-46 CHUMLEY, TIMOTHY W.1*, STERLING C. KEELEY2, JOSE L. PANERO1, and ROBERT K. JANSEN1. 1University of Texas, Austin; 2University of Hawaii, Honolulu. A phylogeny of Lipochaeta (Asteraceae) inferred from the internal and external transcribed spacers of nuclear ribosomal DNA.

33-47 BASTIEN, JULIE and LUC BROUILLET.* Universite de Montreal, QC, Canada. Phylogeny of North American and Eurasian asters (Astereae: Asteraceae) using cpDNA and combined ITS-cpDNA sequence data.

CONTRIBUTED POSTERS: Developmental and Structural Sections, BSA & CBA/ABC -

33-48 DOTY, KAREN F., JAMIE L. BALDWIN, and MARTHA E. COOK. Illinois State University, Normal. Cytokinesis in the charophycean alga Coleochaete (Charophyceae).

33-49 LAMROUS-BENNACEUR, NADIA and SYLVIE LALIBERTŠ. UniversitÈ du QuÈbec, Montreal, Canada. Relationship between cellular parameters and morphogenetic pattern of hybrid larch protoplasts.

33-50 LOTT, JOHN N. A., JESSICA C. LIU, KELLY A. PENNELL, AUDE LESAGE, and M. MARCIA WEST. McMaster University, Hamilton, Ontario, Canada. Two types of mineral nutrient storage particles in embryos of seeds from phyla Coniferophyta, Cycadophyta, Gnetophyta and Ginkgophyta: Early seed plant characteristic.

33-51 THOMPSON, MATTHEW V. and N. MICHELLE HOLBROOK. Harvard University, Cambridge, MA. Genetic/mechanical model of wavy-root development in Arabidopsis.

33-52 CHAPMAN, ERIC M. and ROGER MEICENHEIMER. Miami University, Oxford, OH. Anatomical basis for biophysical differences between Pinus nigra and Pinus resinosa leaves.

33-53 GROOT, EDWIN P., ANDREA BUSCH, and STEFAN GLEISSBERG. University of Mainz, Germany. Isolation and characterization of knox1, floricaula and phantastica gene homologues in members of the Papaveraceae possessing dissected leaves.

33-54 LANGENBERGER, M.W. and A.R. DAVIS.* University of Saskatchewan, Saskatoon, Saskatchewan, Canada. Patterns of floral nectar production in relation to nectary ultrastructure of caraway (Carum carvi L., Apiaceae).

33-55 REHSE, TANIA, W. JOHN KRESS, and ELENA KRAMER. Duke University, Durham, NC; Smithsonian Institution, Washington, D.C.; Harvard University, Cambridge, MA. Staminode evolution and development in the tropical angiosperm order Zingiberales.

33-56 BUZGO, MATYAS, DOUGLAS E. SOLTIS, PAMELA S. SOLTIS, BERNARD A. HAUSER, and BO JOHANSEN. University of Florida, Gainesville; University of Copenhagen, Denmark. B-Class organ identity in basal monocots.

33-57 VON BALTHAZAR, MARIA and PETER K. ENDRESS. University of Zurich, Switzerland. Didymelaceae—a comparison of female structures with Buxaceae and other basal eudicots.

33-58 SKALSKY, JEANNIE. Texas A & M University, College Station, TX. Floret morphological analysis of a putative Silphium (Asteraceae) hybrid population.

33-59 ORNDUFF, ROBERT and RIVKA DULBERGER. Univerity of California, Berkeley; Tel Aviv University, Israel. Exine patterns, pollen size dimorphism, and breeding systems in species of Villarsia (Menyanthaceae).

33-60 ROIZ, LEVAVA and RIVKA DULBERGER. The Hebrew University of Jerusalem, Rehovot, Israel; Tel Aviv University, Israel. Partial male sterility in hermaphrodite flowers of gynodioecious species.

33-61 ZHANG, SHILIANG and DANILO FERNANDO. State University of New York, Syracuse. Structural and molecular analyses of pollen development in a male sterile willow clone.

CONTRIBUTED POSTERS: Ecological Sections, BSA & CBA/ABC -

33-62 Gross, Michael F. Georgian Court College, Lakewood, NJ. Vegetation characteristics of a New Jersey Pinelands community containing high terrestrial gastropod density and exotic gastropod species.

33-63 Antonsen, Hilde¹; Roger C. Anderson²*; and Steven A. Juliano². ¹Agricultural University of Norway, Aas; ²Illinois State University, Normal. Reanalyzing data on effects of nutrients on Schizachyrium scoparium (little bluestem) with high and low AM colonization.

33-64 Kelly, Martin G. Buffalo State College, Buffalo, NY. Comparing non-parametric and parametric methods of analysis for natural selection.

33-65 Smith, Japhia* and Roger C. Anderson. Illinois State University, Normal. Using vital attributes modeling to predict long-term woodland vegetation responses to a variety of burning regimes.

33-66 Catherall, Jennifer M.* and Hugues B. Massicotte. University of Northern British Columbia, Prince George, Canada. Ectomycorrhizal associations of Larix laricina (tamarack) and Betula glandulosa (scrub birch) growing in wetland ecosystems in central British Columbia.

33-67 Dech, Jeffery P.¹* and Peter Nosko². ¹University of Western Ontario, London, Canada; ²Nipissing University, North Bay, ON, Canada. Phenotypic plasticity in Lythrum salicaria L. along a competition gradient in central Ontario wetlands.

33-68 Rickey, Marcia* and Roger Anderson. Illinois State University, Normal. Characterization of three Phragmites australis sites and populations through soil analysis and photosynthesis measurements.

33-69 Reifel, Kristen M.*, Brandon K. Swan, James M. Watts, and Stuart H. Hurlbert. San Diego State University, San Diego, CA. Influence of freshwater inflows on plankton populations in a saline lake, the Salton Sea, California.

33-70 Jog, Suneeti. Cleveland State University, Cleveland, OH. Vascular plant flora of Highland Heights Community Park: A floristic survey and trend analysis of a suburban wetland.

33-71 Moody-Weis, Jennifer¹* and Mary Jamieson². ¹University of Kansas, Lawrence; ²University of Texas, Austin. Experimental removal of garlic mustard (Alliaria petiolata) in Kansas.

33-72 Byerley, M. Brooke* and Shanna Carney. Colorado State University, Fort Collins. Developmental instability and floral formula deviation in Phlox.

33-73 Bell, John M.¹*, Jeffery D. Karron¹, and Randall J. Mitchell². ¹University of Wisconsin, Milwaukee; ²University of Akron, Akron, OH. The effect of interspecific competition for pollinator service on pollen dispersal and mating patterns in Mimulus ringens.

33-74 Rasch, Aaron¹*, H. S. Arathi², and John Kelly². ¹University of New Orleans, New Orleans, LA; ²University of Kansas, Lawrence. Autogamy and floral longevity in Mimulus guttatus.

33-75 Holmquist, Karsten G.A.¹*, Jeffrey D. Karron¹, and Randall J. Mitchell². ¹University of Wisconsin, Milwaukee; ²University of Akron, Akron, OH. The effect of variation in floral morphology on pollen and gene dispersal in Mimulus ringens.

33-76 Kay, Elma E.* and Peter Bernhardt. Saint Louis University, St. Louis, MO. Evolution of vertebrate pollination in Passiflora sp. of the Greater Antilles.

33-77 McCann, Kelly* and Joanne M. Dannenhoffer. Central Michigan University. The reproductive biology of Hill's thistle, Cirsium hillii.

33-78 Pendley, Gretchen Kliem. Sul Ross State University, Alpine TX; University of Kentucky, Lexington. The pollination ecology of Opuntia cf. macrocentra (Cactaceae) in the Trans-Pecos region of Texas.

33-79 Carrino, Sarah R.* and Nancy L. Smith-Huerta. Miami University, Oxford, OH. Effects of nutrient supplementation on components of reproduction in the wildflower Clarkia unguiculata (Onagraceae).

33-80 Lu, Bin¹, Yoshitaka Takahashi², and Shuang-Quan Huang^2,3.* ¹Three Gorge University, Yichang, China; ²National Agricultural Research Center for Western Region, Oda, Shimane, Japan; ³Wuhan University, Wuhan, China. A preliminary study of reproductive biology of Dovetree (Davidia involucrata).

33-81 Hooton, Natalie* and Cindy Bennington. Stetson University, DeLand, FL. Floral gender and reproductive success in Passiflora incarnata.

33-82 Graceffa, L., J. Guevin, H. Hope, and M. Schlessman.* Vassar College, Poughkeepsie, NY. Flowering time, competition, and fecundity of gibberellin-deficient rapid-cycling Brassica.

33-83 Hannan, Gary L. Eastern Michigan University, Ypsilanti. Environmentally induced changes in clonal structure and flowering frequency in Iris lacustris (Iridaceae).

33-84 Delesalle, Veronique A¹* and Susan J Mazer². ¹Gettysburg College, PA; ²University of California at Santa Barbara. Comparing pollen:ovule ratios of early versus late flowers in Clarkia species with contrasting mating systems.

33-85 Feist, Mary Ann*, Brenda Molano-Flores, Jason A. Koontz, and Christopher Whelan. Illinois Natural History Survey, Champaign. Seed germination, host preference, and genetic diversity of the hemiparisitic plant Agalinis auriculata (Scrophulariaceae), an Illinois threatened species.

33-86 Cid, Carmen R. Eastern Connecticut State University, Willimantic. Effect of soil seed bank response to flooding on seasonal and spatial variation in vegetation structure of Connecticut's urban inland wetlands.

33-87 Antlfinger, Ann E.* and Diana Bradshaw. University of Nebraska, Omaha. Seed germination and seedling establishment of Spiranthes cernua (Orchidaceae) in a native and a reestablished prairie.

CONTRIBUTED POSTERS: Economic Botany Section, BSA –

33-88 BHARUCHA, DIANA X., BETH MORLING, and RICHARD A. NIESENBAUM* ¹Muhlenberg College, Allentown, PA. Plants as drugs: How do Latinos and non-Hispanic white communities use and define herbal medicines?

CONTRIBUTED POSTERS: Genetics Section, BSA –

33-89 ANDERSON, M. REBECCA* and SABINES S. LOEW. Illinois State University, Normal. Neutral genetic diversity and population size in a commercially valuable plant, American ginseng.

33-90 BASHORE, SARAH L.* and ART T. TRESE. Ohio University, Athens. Isolation and characterization of lipo-chitin oligosaccharides (LCOs) or nod factors from rhizobium species that have the ability to nodulate a restrictive Phaseolus vulgaris host.

33-91 BOND, MICHAEL, ZHONGMIN DONG, and GENLOU SUN*. Saint Mary's University, Halifax, Nova Scotia, Canada. Estimation of genetic relationships among wheat breeding lines by RAPD marker analyses.

33-92 CUI, LIYING* and CLAUDE W. DEPAMPHILIS. Pennsylvannia State University, University Park. Distribution of transcription factors in protein and EST databases.

33-93 GARCIA, JOSELYD*, STACY M. JAMES, CHINONYER R. EKEOCHA, BRANDY N. PEEPLES, CARRIE A. TIMMONS, RICHARD B. HUNTER, and KIMBERLY L. HUNTER. Salisbury University, MD. Comparison of three understory tree species: Ecology and genetics.

33-94 GOMEZ, A.¹, J. CLIMENT², L. GIL², and R.ALIA¹*. ¹CIFOR-INIA, Carr. Coruna, Madrid, Spain; ²ETSIM, Ciudad Universitaria, Madrid, Spain. Genetic diversity of Pinus canariensis characterized by CpSSR markers.

33-95 INGRAM, AMANDA L.* and JEFF J. DOYLE. Cornell University, Ithaca, NY. A new family of MITEs (miniature inverted-repeat elements) in Uniola paniculata L.

33-96 RISER II, JAMES P.* and LEO P. BRUEDERLE. University of Colorado at Denver. Occurrence of multi-genet tree clusters in Pinus strobiformis (Pinaceae).

33-97 SHARMA, RASHMI^1,2* and RAKESH C. VERMA¹. ¹Vikram University, Ujjain, India and ²Tulane University Health Sciences Center, New Orleans, LA. In Vitro flowering in colchitetraploid Phlox drummondii: A differential genotype-dependent response.

CONTRIBUTED POSTERS: Historical Section, BSA –

33-98 KOVINTHAN, THURSICA and MATTHEW YUN SUN TSE.* University of Toronto, Toronto, Ontario, Canada. Adam White... his unfinished botanical scrapbook.

CONTRIBUTED POSTERS: Paleobotanical Section, BSA –

33-99 NOWAK, MICHAEL D.* and JOHN D. CURTIS. University of Wisconsin-Stevens Point. New and problematic taxa from the Almont, North Dakota locality (Late Paleocene).

33-100 VOGT, FREDERICK W.* and LISA D. BOUCHER. University of Nebraska-Omaha. Paleoclimate estimates from the Late Cretaceous San Juan Basin using leaf physiognomy.

33-101 TAYLOR, WILSON A.*, TIMOTHY R. JOHNSON, and J. DAVID BUSS. University of Wisconsin-Eau Claire. Spore wall ultrastructure in the Anthocerophyta.

CONTRIBUTED POSTERS: PSA / Phycological Section, BSA –

Cell Biology/Physiology:

33-102 CHO, T.O.¹*, S. FREDERICQ¹, AND K.K. YATES². ¹University of Louisiana at Lafayette; ²U.S. Geological Survey, Petersburg, FL. Characterization of macroalgal epiphytes on Thalassia testudinum in Tampa Bay, Florida.

33-103 EVENS, TERENCE J.* AND ROBBIN KOENIG. United States Department of Agriculture, Agricultural Research Service, New Orleans LA. Phosphatase expression by Chlorella vulgaris (Chlorophyceae) is mediated by internal phosphorus levels and external pH.

33-104 FRANKLIN, LINDA A.* AND PATRICK J. NEALE. Smithsonian Environmental Research Center, Edgewater, MD. Biological weighting functions for the effect of UV radiation on carbon partitioning in microalgae.

33-105 HOOPS, HAROLD J.* AND SHAUN M. GIFFORD. State University of New York at Geneseo. Cell signaling in the chemoaccumulation response of the colonial green alga Astrephomene gubernaculifera.

33-106 LEBLOND, JEFFREY D.¹* AND PETER J. CHAPMAN². ¹Middle Tennessee State University, Murfreesboro; ²United States Environmental Protection Agency, Gulf Breeze, FL. Fatty acid and sterol composition of a Karenia brevis bloom in the Gulf of Mexico.

33-107 LEWIS, RAYMOND J.* AND MARK D. LANKER. Wheaton College, Wheaton, IL. Branching morphology of gametophytes and tetrasporophytes of Ceramium codicola is related to phase and reproductive structures.

33-108 LOPEZ-BAUTISTA, J. M. ¹* AND R. L. CHAPMAN². ¹University of Louisiana at Lafayette.; ²Louisiana State University, Baton Rouge. Phragmoplastins, the Trentepohliales, and the evolution of the cytokinesis in green plants.

33-109 PETERS, KEVIN J.¹*, CHARLES D. AMSLER¹, MARGARET O. AMSLER¹, JAMES B. MCCLINTOCK¹, KATRIN B. IKEN¹, AND BILL J. BAKER². ²University of Alabama at Birmingham; ²University of South Florida, Tampa. The effects of thallus toughness and nutritive quality on palatability of Antarctic macroalgae.

33-110 ZHEKISHEVA, MIRASH*, SAMMY BOUSSIBA, INNA KHOZIN-GOLDBERG, ALIZA ZARKA, AND ZVI COHEN. Ben-Gurion University of the Negev, Israel. Accumulation of triacylglycerols in Haematococcus pluvialis is correlated with that of astaxanthin esters.

Ecology:

33-111 CARTY, SUSAN* AND JOHN D. HALL II. Heidelberg College, Tiffin, OH. Desmids and dinoflagellates of Ecuador.

33-112 CIUGULEA, IONEL I.¹, DEBRA A. WATERS²*, JOHN W. DAY, JR.², AND RUSSELL L. CHAPMAN². ¹University of Bucharest, Romania; ²Louisiana State University, Baton Rouge. Phytoplankton of a Mississippi River watershed in coastal Louisiana.

33-113 DeYoe, Hudson R.^1*, Joseph L. Kowalski¹, and Christoper P. Onuf². ¹University of Texas - Pan American, Edinburg; ²Texas A&M University, Corpus Christi. Spatial and temporal characterization of the drifting macroalgae in a subtropical Texas lagoon.

33-114 DIMMER, STEPHANIE K.*, MICHELLE DEAN, MARVIN W. FAWLEY, AND KAREN P. FAWLEY. North Dakota State University, Fargo. Diversity of fusiform microchlorophyte algae from Itasca State Park, Minnesota.

33-115 FAUST, MARIA A. Smithsonian Institution, Suitland, MD. Biodiversity and association of dinoflagellates in coral reef rubble, Carrie Bow Cay, Belize.

33-116 FREDERICQ, S.¹*, T. O. CHO¹, B. GAVIO¹, C. F. GURGEL¹, E. HICKERSON², S. M. LIN¹, J. LOPEZ-BAUTISTA¹, N. PHILLIPS¹, M. VIGUERIE¹, AND B. WYSOR¹. ¹University of Louisiana at Lafayette; ²Flower Garden Banks National Marine Sanctuary, Bryan, TX. A survey of the offshore marine macroalgae from the northwestern Gulf of Mexico Hard Bank communities.

33-117 KIRKPATRICK, BARBARA¹*, LORA E FLEMING², WENDY B STEPHAN², LORRAINE BACKER³, RICHARD CLARK⁴, DOMINICK SQUICCIARINI², RICHARD WEISMAN², AND GAYL VAN DE BOGART². ¹Mote Marine Laboratory, Sarasota; ²University of Miami, Miami, FL; ³Center for Disease Control, Atlanta, GA; ⁴Florida Department of Health, Tallahassee. Public outreach materials regarding harmful algal blooms and their possible effects on human health.

33-118 KREUGER, N.* AND M.L. JULIUS. St. Cloud State University, St. Cloud, MN. Endemism and invasion in the Great Lakes diatom community.

33-119 LOPEZ-BAUTISTA, J. M.¹*, S. FREDERICQ¹, R. L. CHAPMAN², AND D. A. WATERS². ¹University of Louisiana at Lafayette, Lafayette; ²Louisiana State University, Baton Rouge. Biodiversity and potential use of marine macroalgae from the offshore oil platforms in the Gulf of Mexico.

33-120 MAIN, STEPHEN P. Wartburg College, Waverly. Distribution and morphology of diatoms in high altitude streams on Kaua'i (Hawai'i).

33-121 MILLIE, DAVID F.¹*, RYAN J. PIGG², BRIAN J. BENDIS², AND KAREN A. STEIDINGER². ¹Florida Marine Research Institute & Florida Institute of Oceanography, St. Petersburg; ²Florida Marine Research Institute, St. Petersburg. Relating phytoplankton dynamics to environmental forcing in the lower St. Johns River Estuary: A multivariate assessment.

33-122 RHODES, MELODY J. AND TIMOTHY A. NELSON.* Seattle Pacific University, Seattle, WA. Interannual variation in coral reef plant communities of central Belize.

33-123 ROGERS, JOHN E.¹*, ROB H. DAVIS², AND LEAH M. OLIVER¹. ¹United States Environmental Protection Agency, Gulf Breeze, FL; ²UWF/EPA Science Training in Ecology Program. Effects of environmental parameters on the growth characteristics of Symbiodinium spp. isolated from corals.

33-124 TEDROW, O.*, M. L. JULIUS, AND H. L. SCHOENFUSS. St. Cloud State University, St. Cloud, MN. The effects of biogenically active compounds on Cyclotella meneghiniana (Bacillariophyta).

33-125 WAALAND, J. ROBERT. University of Washington, Seattle, WA. Recirculating culture for Chondracanthus exasperatus.

33-126 WATERS, DEBRA A.¹*, IONEL I. CIUGULEA², AND RUSSELL L. CHAPMAN¹. ¹Louisiana State University, Baton Rouge; ²University of Bucharest, Romania. Digital algae-a boon to research and teaching.

Molecular Biology/Phylogeny:

33-127 CHIASSON, WAYNE B., NICHOLAS J. MACHESKY, AND MORGAN L. VIS.* Ohio University, Athens. Phylogeography of Batrachospermum helminthosum (Rhodophyta) in North America.

33-128 GAVIO, BRIGITTE* AND SUZANNE FREDERICQ. University of Louisiana at Lafayette. Grateloupia turuturu (Halymeniaceae, Rhodophyta): The correct identity of the invasive species in the Atlantic known as Grateloupia doryphora as inferred from molecular and morphological evidence.

33-129 GURGEL, CARLOS FREDERICO D.^1,2* AND SUZANNE FREDERICQ². ¹Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; ²University of Louisiana at Lafayette. Three new species of Gracilariopsis (Gracilariales, Rhodophyta) from the Northwestern Atlantic.

33-130 HARVEY, JULIO B.J. University of California, Santa Cruz. 18s based taxonomy and intraspecific ITS sequence variation in the marine fungal endosymbiont Haloguignardia irritans infecting Cystoseira osmundacea along the Californian coast.

33-131 LOPEZ-BAUTISTA, J. M.¹*, R. L. CHAPMAN², F. RINDI³, AND M. GUIRY³. ¹University of Louisiana at Lafayette; ²Louisiana State University, Baton Rouge; ³National University of Ireland, Galway, Ireland. Molecular systematics of the subaerial green algal family Trentepohliaceae (Chlorophyta; Trentepohliales) inferred from 18 SSU rDNA sequences.

33-132 MCCOURT, RICHARD M.¹*, JUN PARK², DAVID A. HEWITT³, AND KENNETH G. KAROL⁴. ¹Academy of Natural Sciences, Philadelphia, PA; ²University of Pennsylvania, Philadelphia; ³Harvard University, Cambridge, MA; ⁴University of Maryland, College Park. Phylogeny of the conjugating green algae (Zygnematales and Desmidiales) based on plastid and mitochondrial gene sequences.

33-133 RICKER, JILL M.*, JEFF D. LEWANDOWSKI, AND CHARLES F. DELWICHE. University of Maryland, College Park. Sequence diversity of the gene tufA in Coleochaete, an algal model for horizontal gene transfer.

33-134 WYSOR, BRIAN¹*, WIEBE H. C. F. KOOISTRA², AND SUZANNE FREDERICQ¹. ¹University of Louisiana at Lafayette; ²Stazione Zoologica `Anton Dohrn', Naples, Italy. Comparative phylogeography of reticulate Cladophoralean algae.

33-135 YEH, WEN-JI*, SHU-CHU LIN, AND GEN-YUAN CHEN. National Pingtung University of Science and Technology, Pingtung, Taiwan. Molecular characteristics of Caulerpa (Chlorophyta) populations in Taiwan.

CONTRIBUTED POSTERS: Physiological Section, BSA -

33-136 LAU, JOANN M¹* and DAVE LOWELL ROBINSON². ¹University of Illinois-Urbana; ²Bellarmine University, Louisville, KY. Relationship between seed and bud dormancy in the herbaceous perennial Eupatorium rugosum.

33-137 SERGIO CASTRO-NAVA¹* and HUERTA, ALFREDO J². ¹UAM Agronomia y Ciencias, Victoria Tam, Mexico; ²Miami University, Oxford, OH. Accumulation of proline in the leaves of grain sorghum (Sorghum bicolor L. Moench) genotypes which differ in their response to drought.

33-138 HAY, JORDAN O.* and ROGER M. SPANSWICK. Cornell University, Ithaca, NY. Rice aleurone protoplasts as a system to study sucrose transport.

33-139 POURESMAEL, MASOOMEH* and MOZAFAR SHARIFI. Jahad-daneshgahi of Tehran University, Tehran , Iran. Dormancy-breaking in Bunium persicum (Boiss.) Fedtsch. seeds by stratification and certain plant growth regulators.

CONTRIBUTED POSTERS: Phytochemical Section, BSA -

33-140 KURCHII, BOGDAN A. Institute of Plant Physiology and Genetics, Kiev, Ukraine. A little bad fact can kill a very attractive and a nice ethylene receptor theory.

CONTRIBUTED POSTERS: Teaching Sections, BSA & CBA/ABC -

33-141 HENRY, APRIL. Arizona State University, Tempe. Paleobotany goes to school: Applying graduate research to the development of an inquiry-based GK-12 science unit.

33-142 LANDIS, FRANK*, ANDREA GARGAS, AND THOMAS GIVNISH. University of Wisconsin, Madison. The plant tree, roots and clades: Mycorrhizae and plant phylogeny.

CONTRIBUTED POSTERS: Tropical Biology Section, BSA -

33-143 TEPE, ERIC J.*, MICHAEL A. VINCENT, AND LINDA E. WATSON. Miami University, Oxford, OH. Novel myrmecophytes among Central American Piper subg. Macrostachys: Morphological and anatomical variation in ant-associated plant parts.

Presiding: Judy Jernstedt, Department of Agronomy & Range Science, University of California-Davis, Davis, CA 95616-8515. Tele: (530) 752-7166, E-mail: jjernstedt@ucdavis.edu.

Speaker: PETER H. RAVEN, Missouri Botanical Garden, St. Louis. Plants and people in the 21^st Century.

Presiding: RANDALL SMALL, Department of Botany, University of Tennessee, Knoxville, TN 37996. Tele: (865) 974-6207, E-mail: rsmall@utk.edu .

2:00 35-1 PRICE, ROBERT A.1* and MICHAEL S. MAYER2. 1Ithaca, NY; 2University of San Diego, CA. NdhF Sequence evidence for an expanded Thelypodiine alliance (Brassicaceae).

2:15 35-2 MAYER, MICHAEL S.1* and ROBERT A. PRICE2. 1University of San Diego, CA; 2Ithaca, NY. Evolution of the streptanthoid species (Brassicaceae): Insight from ITS and ndhF sequences.

2:30 35-3 HALL, JOCELYN C.* and KENNETH J. SYTSMA. University of Wisconsin, Madison. A new placement of members of tribe Stixeae (Capparaceae) based on DNA sequences.

2:45 35-4 LI, JIANHUA1*, YUEQIN CHEN2, and C. DONALD PIGOTT3. 1Arnold Arboretum, Jamaica Plain, MA; 2Zhongshan University, Guangzhou, Guangdong, China; 3Greenbank, Grange-over-Sands, Cumbria, UK. Phylogeny and biogeography of diploid species of Tilia inferred from sequences of nuclear gene nitrate reductase (NIA).

3:00 35-5 BAUM, DAVID A.1*, ALAN YEN2, BARBARA A. WHITLOCK3, WILLIAM S. ALVERSON4, RETO NYFFELER5, STACEY SMITH1, and REBECCA OLDHAM1. 1University of Wisconsin, Madison; 2LifeSpan Biosciences, Seattle, WA; 3University of Massachusetts, Amherst; 4The Field Museum, Chicago, IL; 5Institut fuer Systematische Botanik, Zurich, Switzerland. Mode, locus, and tempo of evolution in Malvoideae and Bombacoideae (Malvaceae s.l.): Evidence from multiple DNA sequences.

3:15 35-6 SMALL, RANDALL. University of Tennessee, Knoxville. The GBSSI gene family in Malvaceae.

3:30 BREAK

3:45 35-7 PFEIL, BERNARD E.1,2*, C. L. BRUBAKER1, L. A. CRAVEN1, and M. D. CRISP2. 1CSIRO Plant Industry, Canberra, Australia; 2Australian National University, Canberra, Australia. Molecular systematics of Hibiscus and Hibisceae (Malvaceae) indicates major changes to tribal and generic classifications.

4:00 35-8 CRONN, RICHARD1*, RANDALL SMALL2, TAMARA HASELKORN3, and JONATHAN WENDEL4. 1USDA Forest Service, Corvallis, OR; 2University of Tennessee, Knoxville; 3University of Georgia, Athens; 4Iowa State University, Ames. Chloroplast and nuclear sequences reveal a complex, reticulate ancestry for the Mexican cotton Gossypium gossypioides (Malvaceae).

4:15 35-9 SLOTTA, TRACEY A. B.* and DUNCAN M. PORTER. Virginia Polytechnic Institute and State University, Blacksburg. Comparison of nuclear and plastid non-coding regions in the phylogeny of Iliamna (Malvaceae).

4:30 35-10 HILL, STEVEN R. Illinois Natural History Survey, Champaign. Malvastrum hispidum (Pursh) Hochr. (Malvaceae) in Illinois: Status, distribution, and nomenclature.

4:45 DISCUSSION

Presiding: STEVEN J. BRUNSFELD, College of Natural Resources, University of Idaho, Moscow, ID 83844. Tele: (208) 885-7211, E-mail: rsbruns@uidaho.edu .

2:00 36-1 METSGER, DEBORAH A.1,2* and JAMES E. ECKENWALDER2. 1Royal Ontario Museum, Toronto, Ontario, Canada; 2University of Toronto, Ontario, Canada. A morphometric investigation of Acer saccharum, Acer nigrum and their putative hybrids (Aceraceae).

2:15 36-2 WEEKS, ANDREA* and BERYL B. SIMPSON. The University of Texas, Austin. Whence the Bursereae (Burseraceae)?: New insights on Burseraceae phylogeny and biogeography based on nuclear and chloroplast sequence data.

2:30 36-3 MORTON, CYNTHIA M. Auburn University, AL. Evolution of the Rutaceae using evidence from three choroloplast genes.

2:45 36-4 MILLER, ALLISON* and BARBARA SCHAAL. Washington University, St. Louis, MO. Genetic variation in a Central American fruit tree (Spondias purpurea L., Anacardiaceae) based on DNA sequence data.

3:00 36-5 EMSHWILLER, EVE. The Field Museum of Natural History, Chicago, IL. Patterns of genotypic diversity in the clonally-propagated tuber crop “oca,” Oxalis tuberosa - data from fluorescent AFLP fingerprinting.

3:15 36-6 BRUNSFELD, STEVEN J.* and TERRY R. MILLER. University of Idaho, Moscow. Evidence for a glacial refugium in the northern Rocky Mountains.

3:30 BREAK

3:45 36-7 MURRELL, Z. E.1*, C. M. ANDERS2, F. WILLIAMS1, and M. ESTEP1. 1Appalachian State University, Boone, NC; 2The Holden Arboretum, Kirtland, OH. Biogeographical implications of genetic structure in Spiraea virginiana: Cumberland Plateau as a Pleistocene refugium?

4:00 36-8 SCHOENSWETTER, PETER*, ANDREAS TRIBSCH, HARALD NIKLFELD, and TOD F. STUESSY2. 1University of Vienna, Austria. Localization of glacial refugia for vascular plants in the European Alps: A comparative phylogeographic approach using AFLP-data.

4:15 36-9 TRIBSCH, ANDREAS1*, PHILIPPE CHOLER2, PETER SCHOENSWETTER1, and TOD F. STUESSY1. 1University of Vienna, Austria; 2Universite J. Fourier, Grenoble, France. Alpine grasslands and the ice age - comparative phylogeography of the dominant sedge Carex curvula subsp. curvula (Cyperaceae) and some frequently associated taxa.

4:30 36-10 MAST, AUSTIN1*, RETO NYFFELER1, and THOMAS J. GIVNISH2. 1University of Zurich, Switzerland; 2University of Wisconsin, Madison. AREND: A computer program that implements a new method for recognizing intracontinental AReas of Endemism using Null Distributions.

Presiding: MICHAEL L. CHRISTIANSON, Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720. Tele: (415) 648-9336, E-mail: mxianson@pacbell.net

2:00 37-1 CHRISTIANSON, MICHAEL L. University of California, Berkeley. Root formation in ferns: An evo-devo exploration.

2:15 37-2 SEAGO, JAMES L. and CHARLES HEIMSCH. State University of New York, Oswego; Moscow, Idaho. Patterns in root apical organization and cortex structure in basal angiosperms and dicotyledons.

2:30 37-3 WIEDENHOEFT, ALEX C., REGIS B. MILLER, and PAUL E. BERRY. USDA Forest Service, Madison, WI; University of Wisconsin, Madison. Wood anatomy of seasonally flooded lightweight-wooded Venezuelan trees.

2:45 37-4 RIDING, R. T., M. B. LAVIGNE, and C. A. LITTLE. University of New Brunswick, Fredericton, Canada; Natural Resources Canada, Fredericton, New Brunswick, Canada. Stem respiration rate: A nondestructive marker of xylem cell production.

3:00 37-5 MILLER, REGIS B. USDA Forest Service, Madison, WI. Wood anatomy of Vochysiaceae with special reference to Qualea and Ruizterania.

3:15 37-6 TOMLINSON, P. BARRY. Harvard University, Petersham, MA; National Tropical Botanical Garden, Kalaheo, HI. Development of gelatinous (“tension”) fibers in Gnetum gnemon (Gnetales).

Presiding: Courtney J. Murren, Department of Biology, University of Maryland, College Park, MD 20742. Tele: (301) 405-1642, E-mail: cmurren@wam.umd.edu .

3:00 38-1 Murren, Courtney J.^1,2* and Carl D. Schlichting^{2. 1}University of Maryland, College Park; ²University of Connecticut, Storrs. Evolutionary ecology of gender determination and its influences on population sex ratio.

3:15 38-2 Stanford, Alice M.*, Loi'y Mustafa, Christa Richardson, and Sonja Saunders. University of the Virgin Islands, St. Thomas. Low genetic diversity in a rare Virgin Islands' endemic, Solanum conocarpum (Solanaceae).

3:30 38-3 Vasseur, Liette*. University of Moncton, NB, Canada. Population flexibility and low allozymic variation in the two disjunct populations of Hydrocotyle umbellata in Canada.

3:45 38-4 Allphin, Loreen*, Amy Hunt, and Val J. Anderson. Brigham Young University, Provo, UT. Genetic variability and loss of reproductive capacity in isolated populations of Utah juniper.

4:00 38-5 Carmichael, Jeffrey S.*, Katy W. Euliss, and Georgann F. Collins. University of North Dakota, Grand Forks. The effects of selenium accumulation in canola (Brassica napus).

4:15 38-6 Smith, Marian* and Paige Mettler. Southern Illinois University, Edwardsville. The response of photosynthesis, stomatal conductance and transpiration to light and relative humidity in Schoenoplectus hallii, a threatened wetland species.

4:30 DISCUSSION

Presiding: Bonnie F. Jacobs (Chair, Paleobotanical Section), Environmental Science Program, Southern Methodist University, PO Box 750395, Dallas, TX 75275-0395. Tele: (214) 768-2701, E-mail: bjacobs@mail.smu.edu .

Presiding: Jane H. Bock (Botany), E.P.O. Biology Department, CB 334, University of Colorado, Boulder, CO 80309. Tele: (303) 492-7758, E-mail: Jane.Bock@colorado.edu , and David O. Norris (Zoology-Endocrinology), University of Colorado, Boulder, CO 80309.

Presiding: CURT PUESCHEL, Department of Biological Sciences, State University of New York at Binghamton, Binghamton, NY 13902; and HAROLD HOOPS, Department of Biology, State University of New York at Geneseo, Geneseo, NY 14454.

3:15 40-1 LAZAROFF, NORMAN. Fndtn. for Microbiological Analysis, Vestal, NY. Preservation of nostocacean hormogone motility in desiccated calcium carbonate agar patches

3:30 40-2 TANCZOS, MELINDA A.¹*, J. CRAIG BAILEY¹, AND ROBEERT A. ANDERSEN². ¹University of North Carolina-Wilmington; ²Bigelow Laboratory for Ocean Sciences, W. Boothbay Harbor, ME. Ultrastructure and phylogeny of a new species belonging to the Prymnesiophyceae.

3:45 40-3 HIRSCHMUGL, CAROL¹*, MARIA BUNTA¹, JUSTIN HOLT¹, MARIO GIORDANO², ANDREJ SKILIROV¹, AND J. RUDI STRICKLER¹. ¹University of Wisconsin-Milwaukee; ²University of Ancona, Ancona, Italy. Synchrotron-based infrared imaging of Euglena gracilis single cells.

4:00 40-4 LEWIS, LOUISE A.*, ZOE G. CARDON, AND DEBORAH TYSER. University of Connecticut, Storrs. Chlororespiration in green algae isolated from desert crusts.

4:15 40-5 LOUREN«O, SERGIO O.* AND JOHN A. BERGES. Queen's University of Belfast, Belfast, Northern Ireland, UK. Physiological and biochemical responses of two seaweeds to nutrient- or light-deprivation.

4:30 40-6 PUESCHEL, CURT¹* AND SUSSE WEGEBERG². ¹ State University of New York at Binghamton, ²Marine Biological Laboratory, Helsingor, Denmark. Calcification and decalcification during epithallial cell turnover in coralline red algae.

4:45 40-7 AMSLER, CHARLES D.¹*, MARGARET O. AMSLER¹, JAMES B.MCCLINTOCK¹, KATRIN B. IKEN¹, JOANNA M. HUBBARD¹, AND BILL J. BAKER². ¹University of Alabama at Birmingham, Birmingham; ²University of South Florida, Tampa. Palatability and chemical defenses of macroalgae on the Antarctic Peninsula.

Presiding: STEVE MURRAY, Department of Biological Science, California State University, Fullerton, CA 92834.

3:15 41-1 STAM, WYTZE T.¹*, ISABELLE MEUSNIER², CHRISTOPHE DESTOMBE², MYRIAM VALERO², AND JEANINE L. OLSEN¹. ¹University of Groningen, The Netherlands; ²Universite de Lille-1, France. Tracing invasions of Caulerpa taxifolia with molecular markers.

3:30 41-2 NELSON, TIMOTHY A.¹*, DEJAH LEE¹, BRIDGET C. SMITH², AND RENEE PRINS¹. ¹Seattle Pacific University, Seattle, WA; ²University of Washington, Seattle. Are `green tides' harmful algal blooms? Allelopathic properties of extracts from Ulva fenestrata and Ulvaria obscura.

3:45 41-3 NELSON, TIMOTHY A.¹*, KATHRYN L. VAN ALSTYNE², AND HEATHER RIBARICH¹. ¹Seattle Pacific University, Seattle, WA; ²Shannon Point Marine Center, Anacortes, WA. The effects of nitrogen regime on growth, [CHN], [DMSP],[chlorophyll], [protein] and nitrogen uptake rate in Ulvaria obscura and Ulva fenestrata.

4:00 41-4 LEBLOND, JEFFREY D.¹* AND PETER J. CHAPMAN². ¹Middle Tennessee State University, Murfreesboro; ²U.S. Environmental Protection Agency, Gulf Breeze, FL. Lipid biomarker analysis of the toxic dinoflagellate Pfiesteria piscicida: Distribution of sterols and fatty acids within the class Dinophyceae.

4:15 41-5 KOWIAK, BRIAN AND GRANT GREGORY MITMAN.* Montana Tech of The University of Montana, Butte. Algal stimulation of the Berkeley Pit Lake System

4:30 41-6 WATSON, SUSAN^1,2* AND LOEKE JANZEN. ¹Environment Canada, Burlington, ON; ²University of Calgary, Calgary, AB. Canada. Algal polyunsaturated fatty acids: Food, pheromones and foul odour.

4:45 DISCUSSION

Presiding: SCOTT D. RUSSELL, Department of Botany and Microbiology, 770 Van Vleet Oval, University of Oklahoma, Norman, OK 73019-0245. Tele: (405) 325-6234, E-mail: srussell@ou.edu.

Speaker: KARL J. NIKLAS, Cornell University, Ithaca, NY. Plant morphogenesis: Logic and mechanism.

Presiding: PAM KRANNITZ, Pacific Wildlife Research Centre, 5421 Robertson Road, R.R. 1, Delta, BC V4K 3N2, Canada. Tel: (604) 946-4676, E-mail: pamk@interchange.ubc.ca.

Presiding: CHRISTINE MAXWELL, Trent University, Department of Biology, Peterborough ON K9J 7B8, Canada. Tel: (705) 748-1357, E-mail: cmaxwell@trentu.ca.

Presiding: Judy Jernstedt, Department of Agronomy & Range Science, University of California-Davis, Davis, CA 95616-8515. Tele: (530) 752-7166, E-mail: jjernstedt@ucdavis.edu.

Presiding: A. Michelle Wood, Department of Biology, University of Oregon, Eugene, OR 97403. Tele: (541) 346-0454, E-mail: miche@darkwing.uoregon.edu.

Presiding: Thomas F. Daniel, Department of Botany, California Academy of Sciences, Golden Gate Park, San Francisco, CA 94118-4599. Tele: (415) 750-7191

Address of the ASPT President-Elect: LYNN CLARK, Iowa State University, Ames. The grass is always greener.