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

MONDAY, 5 AUGUST

Presiding: TREVOR JONES, Acadia University, Department of Biology, Wolfville, NS B0P1X0, Canada.

Organized by: Patricia Gensel, Department of Biology, University of North Carolina, Chapel Hill, NC 27599. Tele: (919) 962-6937, E-mail: pgensel@bio.unc.edu .

Presiding: Patricia Gensel, University of North Carolina, Chapel Hill.

8:00 1-1 Gensel, Patricia. University of North Carolina, Chapel Hill. Introductory remarks.

8:15 1-2 DONOGHUE, MICHAEL J. Yale University, New Haven, CT. Relationships between evolution and systematics/phylogeny, including biogeography.

8:45 1-3 RIESEBERG, LOREN H. Indiana University, Bloomington. Speciation: A legacy of botanical discovery.

9:15 1-4 VISION, TODD. University of North Carolina, Chapel Hill. Plant genomes: Phenotypes evolving by new rules.

9:45 BREAK

10:00 1-5 ROTHWELL, GAR. Ohio University, Athens. Paleontology and plant evolution.

10:30 1-6 PETTO, ANDREW J. University of the Arts, Philadelphia PA. Plant evolution at the head of the class.

11:00 DISCUSSION

Organized by: CHRISTOPHER S. CAMPBELL, Department of Biological Sciences, University of Maine, Orono, ME 04469-5722. Tele: (207) 581-2551, E-mail: Christopher_Campbell@umit.maine.edu; and TIMOTHY A. DICKINSON, Royal Ontario Museum, Toronto, Canada. Tele: (416) 586-8032, E-mail: timd@rom.on.ca .

Presiding: CHRISTOPHER S. CAMPBELL, University of Maine, Orono.

8:00 2-1 DICKINSON, TIMOTHY A.1*, RODGER C. EVANS2, and CHRISTOPHER S. CAMPBELL3. 1Royal Ontario Museum, Toronto, Canada; 2Acadia University, Wolfville, NS, Canada; 3University of Maine, Orono. Rosaceae classification and phylogeny: introduction and overview.

8:15 2-2 SMEDMARK, JENNY E.1,2*, TORSTEN ERIKSSON1,2, and PIA OSTENSSON2. 1Royal Swedish Academy of Sciences, Stockholm, Sweden; 2Stockholm University, Sweden. Hybridisation, polyploidy, and phylogeny in Rosaceae.

8:30 2-3 ERIKSEN, BENTE. University of Gothenburg, Sweden. Frequency of sexual reproduction in the facultative agamosperm Potentilla nivea L. (Rosaceae) – evidence from paternity analyses.

8:45 2-4 EVANS, RODGER C.1* and TIMOTHY A. DICKINSON2. 1Acadia University, Wolfville, NS, Canada; 2Royal Ontario Museum, Toronto, Canada. How do studies of comparative ontogeny and morphology aid in elucidation of relationships within the Rosaceae?

9:00 2-5 MORGAN, DAVID R.1* and KENNETH R. ROBERTSON2. 1Western Washington University, Bellingham; 2Illinois Natural History Survey, Champaign. Fruit evolution in Rosaceae.

9:15 2-6 ALICE, LAWRENCE A. Western Kentucky University, Bowling Green. Insights into a taxonomically challenging group: Rubus (Rosoideae; Rosaceae).

9:30 2-7 PHIPPS, JAMES B. University of Western Ontario, London, Canada. Hybridization frequency in North American Crataegus - insights from Missouri.

9:45 2-8 HARRIS, ERIC S. J.1* and TIMOTHY A. DICKINSON2. 1University of California, Berkeley; 2Royal Ontario Museum, Toronto, Canada. Investigation of hybrids in Crataegus (Rosaceae: Maloideae) using foliar flavonoids.

10:00 BREAK

10:15 2-9 FAY, MICHAEL F.1*, ROBYN S. COWAN1, and TIM C. G. RICH2. 1Royal Botanic Gardens, Kew, Richmond, United Kingdom; 2National Museum and Gallery, Cardiff, United Kingdom. Patterns of genetic variation in the Sorbus latifolia aggregate (Rosaceae) - evidence from nuclear AFLP and plastid DNA sequences.

10:30 2-10 OH, SANG-HUN* and DANIEL POTTER. University of California, Davis. Phylogeny and biogeography of the genus Physocarpus (Rosaceae: Neillieae) inferred from DNA sequence data.

10:45 2-11 SHAW, JOEY* and RANDALL SMALL. University of Tennessee, Knoxville. A preliminary phylogeny of Prunus section Prunocerasus (Rosaceae).

11:00 2-12 STARR, JULIAN R.* and ANNE BRUNEAU. UniversitÈ de MontrÈal, QC, Canada. Phylogeny of Rosa L. (Rosaceae) based on trnL-F intron and spacer sequences.

11:15 2-13 OH, SANG-HUN and DANIEL POTTER.* University of California, Davis. Where does Guamatela belong?

11:30 2-14 ERIKSSON, TORSTEN1,2*, JENNY E. E. SMEDMARK1,2, MALIN S. HIBBS3, and PIA OSTENSSON2. 1Royal Swedish Academy of Sciences, Stockholm, Sweden; 2Stockholm University, Sweden; 3University of Maryland, College Park. Phylogeny of Rosoideae (Rosaceae).

11:45 2-15 CAMPBELL, CHRISTOPHER S.1*, RODGER C. EVANS2, MATTHEW P. ARSENAULT1, and TIMOTHY A. DICKINSON3. 1University of Maine, Orono; 2Acadia University, Wolfville, NS, Canada; 3Royal Ontario Museum, Toronto, Canada. Phylogenetic insights into the Maloideae (Rosaceae) from chloroplast DNA.

12:15 2-16 EVANS, R.1, C. CAMPBELL2, D. POTTER3*, D. MORGAN4, T. ERIKSSON5, L. ALICE6, S.-H. OH3, E. BORTIRI3, F. GAO3, J. SMEDMARK5, and M. ARSENAULT2. 1Acadia University, Wolfville, NS, Canada; 2University of Maine, Orono; 3University of California, Davis; 4Western Washington University, Bellingham; 5Royal Swedish Academy of Sciences, Stockholm, Sweden; 6Western Kentucky University, Bowling Green. A Rosaceae phylogeny.

Presiding: SARAH MATHEWS, Division of Biological Sciences, University of Missouri, Columbia, MO 65211. Tele: (573) 882-3440, E-mail: mathewss@missouri.edu .

8:00 3-1 DUFF, R. JOEL1*, D. CHRIS CHARGILL2, and KAREN S. RENZAGLIA3. 1University of Akron, OH; 2Center for Plant Biodiversity Research, Canberra, Australia; 3Southern Illinois University, Carbondale. Phylogenetic relationships and classification of the hornworts (Anthocerotae) based on chloroplast rbcL data.

8:15 3-2 DES MARAIS, DAVID L.1,2* and BRENT D. MISHLER2. 1Duke University, Durham, NC; 2University of California, Berkeley. Phylogeography of the moss genus Timmiella (Pottiaceae; Musci).

8:30 3-3 NAPIER, NANCY S.1, SARA B. HOOT1*, and W. CARL TAYLOR2. 1University of Wisconsin, Milwaukee; 2Milwaukee Public Museum, WI. Unraveling a tangled web: hybrid and allopolyploid origins in IsoÎtes.

8:45 3-4 YATABE, YOKO* and NORIAKI MURAKAMI. Kyoto University, Japan. New method to efficiently recognize cryptic species in homosporous ferns - Case study in bird-nest fern, Asplenium nidus complex.

9:00 3-5 LITTLE, DAMON P. Cornell University, Ithaca, NY. Phylogeny and species circumscription in Cupressoideae (Cupressaceae) with special reference to Cupressus.

9:15 3-6 GERNANDT, DAVID S.1*, AARON LISTON2, and DANIEL PI-ERO3. 1Universidad Nacional AutÛnoma de Hidalgo,Mexico; 2Oregon State University, Corvallis; 3Universidad Nacional AutÛnoma de MÈxico, Mexico City. Molecular phylogenetics of pinyon pines (Pinus subsections Cembroides and Nelsoniae).

9:30 3-7 VU, NINH V.* and STEVEN J. BRUNSFELD. University of Idaho, Moscow. Evolutionary impacts of hybridization between Abies grandis (grand fir) and A. concolor (concolor fir).

9:45 3-8 RAI, HARDEEP S1*, PATRICK A REEVES2, RICHARD G OLMSTEAD2, and SEAN W GRAHAM1. 1University of Alberta, Edmonton, Canada; 2University of Washington, Seattle. Conifer monophyly and higher-order relationships based on a large, multigene plastid data set.

10:00 BREAK

10:15 3-9 MATHEWS, SARAH1* and MICHAEL J. DONOGHUE2. 1University of Missouri, Columbia; 2Yale University, New Haven, CT. Analyses of phytochrome data from seed plants: exploration of conflicting results from parsimony and Bayesian approaches.

10:30 3-10 BURLEIGH, J. GORDON and SARAH MATHEWS.* University of Missouri, Columbia. Resolving ancient divergences in molecular phylogenetic analyses: sources of error and bias in a 9-locus data set from seed plants.

10:45 3-11 QIU, YIN-LONG*, OLENA DOMBROVSKA, JUNGHO LEE, BARBARA WHITLOCK, and LIBO LI. University of Massachusetts, Amherst. A Land Plant Phylogeny Inferred from Six Mitochondrial, Plastid and Nuclear Genes.

11:00 3-12 GRAHAM, SEAN W.1*, HARDEEP S. RAI1, PATRICK A. REEVES2, MARC A. MCPHERSON1, and RICHARD G. OLMSTEAD2. 1University of Alberta, Edmonton,Canada; 2University of Washington, Seattle. Addressing deep and difficult problems in plant molecular systematics using large-scale sequencing of the plastid genome.

11:15 3-13 DUVALL, MELVIN R.* and AUTUMN J. BRICKER. Northern Illinois University, DeKalb. Nuclear-cytoplasmic incongruence among monocots and related paleoherb dicots.

11:30 3-14 HILU, KHIDIR W.1*, THOMAS BORSCH2, and KAI MULLER2. 1Virginia Tech, Blacksburg; 2University of Bonn, Germany. Contributions of fast evolving genomic regions to deep-level phylogenetics: A case study in basal angiosperms.

11:45 3-15 SIMS, HALLIE J.1* and KEVIN J. MCCONWAY2. 1Smithsonian Institution, Washington, DC; 2The Open University, Milton Keynes, UK. Non-stochastic variation of species-level diversification rates within angiosperms.

12:00 3-16 MAGALLON, SUSANA A.1* and MICHAEL J. SANDERSON2. 1Universidad Nacional Autonoma de Mexico; 2University of California, Davis. Absolute diversification rates in angiosperm clades.

12:15 3-17 WHITLOCK, B. A.*, J. LEE, O. DOMBROVSKA, and Y.-L. QIU. University of Massachusetts, Amherst. Effects of rate heterogeneity on estimates of the age of angiosperms.

Presiding: KENNETH M. CAMERON, The Lewis B. and Dorothy Cullman Program for Molecular Systematics Studies, The New York Botanical Garden, Bronx, NY 10458. Tele: (718) 817-8179, E-mail: kcameron@nybg.org .

8:00 4-1 SOROS, CONNIE L.1,2* and DONALD H. LES2. 1University of Guelph, ON, Canada; 2University of Connecticut, Storrs. Phylogenetic relationships in the Alismataceae.

8:15 4-2 FARMER, SUSAN B* and EDWARD E. SCHILLING. University of Tennessee, Knoxville. Additional insights into Trilliaceae phylogeny: The Delostylis group.

8:30 4-3 ZOMLEFER, WENDY B. University of Georgia, Athens. Phylogenetic relationships and character evolution in the Melanthieae (Liliales: Melanthiaceae).

8:45 4-4 ALLEN, GERALDINE A.1*, PAMELA S. SOLTIS2, and DOUGLAS E. SOLTIS2. 1University of Victoria, BC, Canada; 2The University of Florida, Gainesville. The origins of two allotetraploid species of Erythronium (Liliaceae): evidence from ITS and psbA-trnH DNA sequences and AFLP markers.

9:00 4-5 CRAWFORD, DANIEL J.1*, REBECCA T. KIMBALL2, DONALD H. LES3, ELIAS LANDOLT4, and LISA E. WALLACE5. 1University of Kansas, Lawrence; 2University of Florida, Gainesville; 3University of Connecticut, Storrs; 4Geobotanisches Institut ETH, Zurich, Switzerland; 5The Ohio State University, Columbus. The origin of Lemna japonica (Lemnaceae): Insights from molecular data.

9:15 4-6 BALLARD, HARVEY E.1*, GAR ROTHWELL1, and RUTH STOCKEY2. 1Ohio University, Athens; 2University of Alberta, Edmonton, Canada. Reassessing relationships among aroids and duckweeds.

9:30 4-7 HORNBERGER, KATHLEEN L.1*, KIMBERLY L. HUNTER2, JILL HOPKINS1, JENNIFER WACHTEL2, ERIN DENNEY2, ERIN GALLAGHER2, and KAT STOUME1. 1Widener University, Chester, PA; 2Salisbury University, MD. Evolution of the genus Sisyrinchium (Iridaceae).

9:45 4-8 ALVAREZ, AIDA1,2* and KENNETH M. CAMERON1. 1The New York Botanical Garden, Bronx; 2The City University of New York, NY. Systematic studies of Gomphichis (Prescottiinae, Orchidaceae).

10:00 BREAK

10:15 4-9 CAMERON, KENNETH M. The New York Botanical Garden, Bronx. Intertribal relationships within Orchidaceae as inferred from analyses of five plastid genes.

10:30 4-10 WALLACE, LISA. The Ohio State University, Columbus. Evolutionary patterns of allopolyploidy in Platanthera huronensis (Orchidaceae): Evidence from molecules and morphology.

10:45 4-11 CHASE, MARK W.1*, MICHELLE VAN DER BANK2, DION DEVEY1, and MICHAEL F. FAY1. 1Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom; 2Rand Afrikaans University, Johannesburg, South Africa. Nuclear ribosomal DNA sequences and the evolution of multiple lineages of allotetraploids in Dactylorhiza (Orchidaceae).

11:00 4-12 FAY, MICHAEL F.*, RUTH BONE, OLIVIER MAURIN, and ROBYN S. COWAN. Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom. Plastid microsatellites and indels in Cypripedium calceolus (Orchidaceae) biogeography and conservation.

11:15 4-13 LEWIS, CARL E.1*, SCOTT ZONA1, and JAVIER FRANCISCO-ORTEGA2. 1Fairchild Tropical Garden, Coral Gables, FL; 2 Florida International University, Miami. Molecular systematics of the doum palms (Hyphaene) and related genera (Arecaceae tribe Borasseae).

11:30 4-14 RONCAL, JULISSA1*, CARL E. LEWIS2, CONNY B. ASMUSSEN3, and JAVIER FRANCISCO-ORTEGA1,2. 1Florida International University, Miami; 2Fairchild Tropical Garden, Coral Gables, FL; 3Royal Veterinary and Agricultural University. Rolighedsvej, Denmark. Molecular phylogenetics of the palm tribe Geonomeae (Arecaceae).

11:45 4-15 UNWIN, MATTHEW M.1*, PAULO TAKEO SANO2, LINDA E. WATSON1, and FABIANE NEPOMUCENO DA COSTA2. 1Miami University, Oxford, Ohio; 2University of Sao Paulo, Brazil. Systematics of the Eriocaulaceae.

Presiding: JUERG SCHOENENBERGER, Institute of Systemtic Botany, University of Zurich, Zollikerstrasse 107, CH-8008 Zurich, Switzerland. Tele: (41) 1 634 84 18, E-mail: jsberger@pop.unizh.ch .

8:00 5-1 WECKERLE, CAROLINE S., PETER K. ENDRESS, and ROLF RUTISHAUSER. University of Zurich, Switzerland. Systematics of the genus Averrhoidium (Sapindaceae) with special emphasis on its fruit morphology.

8:15 5-2 RICHARDS, JENNIFER H. Florida International University, Miami. Flower sex expression, spikelet morphology and spikelet phenology in sawgrass, Cladium jamaicense Crantz (Cyperaceae).

8:30 5-3 BORGARDT, SANDRA J. and KEVIN C. NIXON. Cornell University, Ithaca, NY. A phylogenetically based ovule, seed and fruit anatomical/developmental study within the genus Quercus (Fagaceae).

8:45 5-4 ENDRESS, PETER K. and DORIS MERINO SUTTER. University of Zurich, Switzerland. Female flowers and cupules of Balanopaceae, an enigmatic rosid family.

9:00 5-5 POSLUZNY, USHER and P. BARRY TOMLINSON. University of Guelph, Ontario, Canada; Harvard University, Petersham, MA; National Tropical Botanical Garden, Kalaheo, HI. Early floral development in Amborella trichopoda Baill.

9:15 5-6 BLARER, ALBERT, DANIEL L. NICKRENT, and PETER K. ENDRESS. University of Zurich, Switzerland; Southern Illinois University, Carbondale. Comparative floral anatomy of Apodanthes, Pilostyles, and Berlinianche (Apodanthaceae).

9:30 5-7 STAUFFER, FRED W. and PETER K. ENDRESS. University of Zurich, Switzerland. Comparative morphology of the gynoecium in the neotropical tribe Geonomeae (Arecaceae: Arecoideae).

9:45 5-8 MATTHEWS, MERRAN L. and PETER K. ENDRESS. University of Zurich, Switzerland. Combination of Elaeocarpaceae and Tremendraceae supported by floral structure.

10:00 BREAK

10:15 5-9 SCHOENENBERGER, JUERG and ELENA CONTI. University of Zurich, Switzerland. Penaeaceae (Myrtales) – Floral development and structure in the light of a molecular phylogeny.

10:30 5-10 LIVSHULTZ, TATYANA. Cornell University, Ithaca, N.Y. Comparative morphology and development of staminal coronas in Dischidia (Asclepiadoideae, Apocynaceae).

10:45 5-11 NIKOLOVA, IANA and JUDITH M. CANNE-HILLIKER. University of Guelph, Guelph, Ontario, Canada. Comparative floral development of Agalinis (Scrophulariaceae s. l.)

11:00 5-12 LITT, AMY and VIVIAN IRISH. Yale University, New Haven, CT. Evolution of floral structure: Changes in sequence, expression, and function of the APETALA1 gene family.

11:15 5-13 ZANIS, MICHAEL, DOUGLAS SOLTIS, PAMELA SOLTIS, and SANGTAE KIM. Washington State University, Pullman; University of Florida, Gainesville. Isolation and characterization of B-Class MADS-Box genes from basal angiosperms.

11:30 5-14 SANGTAE, KIM, DOUGLAS SOLTIS, PAMELA SOLTIS, PETER K. ENDRESS, BERNARD A. HAUSER, and MICHAEL J. ZANIS. University of Florida, Gainesville; University of Zurich, Switzerland; Washington State University, Pullman. Origin of the calyptra and characterization of B class genes in Eupomatia bennettii (Eupomatiaceae).

11:45 5-15 RUNIONS, C. JOHN and JIM HASELOFF. University of Cambridge, U.K. Enhancer trapping: visualization of tissue-specific gene expression in living meristems.

Organized by: Jeffrey D. Karron, Department of Biological Sciences, P.O. Box 413, University of Wisconsin-Milwaukee, Milwaukee, WI 53201. Tele: (414) 229-6003, E-mail: karron@uwm.edu, and Michele R. Dudash, Department of Biology, University of Maryland, College Park, MD 20742. Tele: (301) 405-1642, E-mail: md59@umail.umd.edu .

Presiding: Jeffrey D. Karron, University of Wisconsin-Milwaukee.

8:15 6-1 Karron, Jeffrey D. University of Wisconsin-Milwaukee. Opening remarks.

8:30 6-2 Dole, Jefferey^1* and Adam Porter². ¹University of Tennessee, Knoxville; ²University of Massachusetts, Amherst. Forces shaping mating system evolution and speciation in Mimulus: Inferences from hybrid zones.

9:00 6-3 Macnair, Mark R. University of Exeter, UK. The evolution of self-fertilization in the Mimulus guttatus complex.

9:30 6-4 Fenster, Charles B. University of Maryland, College Park. PrePCR Mimulus Genetics: Inferences and predictions.

10:00 Break

10:30 6-5 Dudash, Michele R.^1*, Courtney J. Murren¹, and David E. Carr². ¹University of Maryland, College Park; ²University of Virginia, Boyce. Explorations into inbreeding depression, phenotypic plasticity, and their potential roles in colonization success.

11:00 6-6 Ritland, Kermit. University of British Columbia, Vancouver, Canada. Field estimates of inbreeding depression in monkeyflowers using naturally occurring variation.

11:30 6-7 Carr, David E.¹*, Micky D. Eubanks², and Christopher T. Ivey¹. ¹Universityof Virginia, Boyce; ²Auburn University, AL. Inbreeding and its effects on plant-herbivore interactions.

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

9:15 7-1 Taylor, W. Carl¹*, Neil T. Luebke¹, and Sara B. Hoot². ¹Milwaukee Public Museum, Milwaukee, WI; ²University of Wisconsin, Milwaukee. Phylogeny and allopolyploidy of South American IsoÎtes based on morphology, chromosome counts, and DNA sequences.

9:30 7-2 LUEBKE, NEIL T.¹*, W. CARL TAYLOR¹, and MARY ANN POLASEK². ¹Milwaukee Public Museum, Milwaukee, WI; ²Cardinal Stritch University, Milwaukee, WI. An octoploid species of IsoÎtes from Tennessee.

9:45 7-3 Jakob. Schneller¹*, Hans Gerber², and Alex Zuppiger¹*. ¹Institute of Systematic Botany, Z¸rich, Switzerland; ²Swiss Federal Institute of Technology, Z¸rich, Switzerland. Spore dispersal mechanisms in Selaginella. A fascinating case of bioballistics.

10:00 7-4 SPEER, WILLIAM D.* and PAUL G. WOLF. Utah State University, Logan. A phylogenetic study of the genus Equisetum using chloroplast and nuclear DNA.

10:15 BREAK

10:30 7-5 HAUK, WARREN D.* and HEATHER M. HAWKE. Denison University, Granville, OH. Phylogenetic relationships in Botrychium s.s. (Ophioglossaceae) based on rbcL and trnL-F cpDNA sequences.

10:45 7-6 SCHUETTPELZ, ERIC¹*, HARALD SCHNEIDER², and KATHLEEN M. PRYER¹. ¹Duke University, Durham, NC; ²University of Goettingen, Germany. The phylogenetic history of Pterozonium (Pteridaceae) revisited: From groundplan divergence to maximum parsimony.

11:00 7-7 SHINOHARA, WATARU* and NORIAKI MURAKAMI. Kyoto University, Japan. Cytological and molecular studies on intraspecific differentiation within the Deparia petersenii complex.

11:15 7-8 BARRINGTON, DAVID S.¹*, YOKO YATABE², and WU SUGONG³. ¹University of Vermont, Burlington; ²Kyoto University, Japan; ³Kunming Institute of Botany, People's Republic of China. New insights into the phylogeny of Asian Polystichum (Dryopteridaceae) from expanded rbcL data.

Presiding: Felix G. Coe, Department of Ecology and Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Storrs, CT 06269-3043. Tele: (860) 486-1890, E-mail: fcoe@uconnvm.uconn.edu .

Presiding: HENRI ROGER MAURICE, Department of Biology, University of Southern Indiana, 8600 University Blvd., Evansville, IN 47712. Tele: (812) 461-5231, E-mail: hmaurice@usi.edu .

10:30 8-1 FAN, SHUGUO^1,2*, CHENGYE LIANG¹, and MARIKO SHONO². ¹South China Institute of Botany, Guangzhou, China; ²Japan International Research Center for Agricultural Sciences, Okinawa, Japan. Protein analysis of salt tolerant suspension cultures of rice (Oryza sativa L. cv. Taipei 309) by supplemental calcium.

10:45 8-2 WOODRUM, CARRIE LEIGH*, F. W. EWERS, and F. W. TELEWSKI. Michigan State University, East Lansing. Hydraulic, biomechanical, and anatomical study of xylem from five tree species of Acer.

11:00 8-3 THORHAUG, ANITRA*, ANDREW D. RICHARDSON, and GRAEME BERLYN. Yale School of Forestry & Environment Studies, New Haven, CT. Spectral reflectance measurements of the seagrass Thalassia testudinum (Bank ex Konig): Low salinity tolerance.

11:15 8-4 SPICER, RACHEL.* and N. M. HOLBROOK. Harvard University, Cambridge, MA. Senescence of secondary xylem in angiosperms vs. conifers: The aging and death of parenchyma cells during the transition from sapwood to heartwood.

Presiding: Felix G. Coe, Department of Ecology and Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Storrs, CT 06269-3043. Tele: (860) 486-1890, E-mail: fcoe@uconnvm.uconn.edu .

Speaker: Hugh H. Iltis, University of Wisconsin, Madison. Domestication of Zea: First for sugar, only then for grain? A novel idea with vast implications.

Presiding: DENISE SELISKAR, Halophyte Biotechnology Center, College of Marine Studies, University of Delaware, 700 Pilottown Rd., Lewes, DE 19958. Tele: (302) 645-4366, E-mail: seliskar@udel.edu

Presiding: Gene K. Mapes, Department of Environmental & Plant Biology, Ohio University, Athens, OH 45701-2959. Tele: (740) 593-9358 ext. 1126, E-mail: mapesg@ohiou.edu .

12:25 9-1 JACOBS, BONNIE F. (Chair, Paleobotanical Section). Introduction and comments from the Chair.

12:30 9-2 CORBETT, SARAH L.* and STEVEN R. MANCHESTER. University of Florida, Gainesville. Phytogeographic history of Ailanthus Desf. (Simaroubaceae) based on fossil fruits.

12:45 9-3 CHEN, JUDY IJU. Florida Museum of Natural History, Gainesville. Middle Eocene palynoflora of Huadian, Jilin Province, Northeastern China.

1:00 9-4 COLEMAN, AMANDA L.* and KATHLEEN B. PIGG. Arizona State University, Tempe. Anatomically preserved taxodiaceous ovulate cones from the middle Miocene Yakima Canyon flora, Washington State, USA.

1:15 9-5 LITTLE, STEFAN A.* and RUTH A. STOCKEY. University of Alberta, Edmonton, Canada. Fossil Duabanga-like leaves (Lythraceae) from the Princeton chert.

1:30 9-6 SMITH, SELENA Y.*, RANDOLPH S. CURRAH, and RUTH A. STOCKEY. University of Alberta, Edmonton, Canada. Poroid hymenophores from the Cretaceous and Eocene of Vancouver Island, British Columbia.

1:45 BREAK

2:00 9-7 BROUGHTON, JULIE D* and BRUCE H. TIFFNEY. University of California, Santa Barbara. Paleoclimate and paleoecology of the Early Miocene Mohawk Valley Flora, northern Sierra Nevada, California.

2:15 9-8 CALVILLO-CANADELL, LAURA* and SERGIO R. S. CEVALLOS-FERRIZ. Ciudad Universitaria and Instituto de Geologica, Del. Coyoac·n, MÈxico. Fossil legumes from Mexico.

2:30 9-9 MARTÕNEZ-MILL¡N, MARCELA*, SERGIO R. S. CEVALLOS-FERRIZ, and TERESA TERRAZAS-SALGADO. Ciudad Universitaria and Instituto de GeologÌa, Del. Coyoac·n, and Montecillos, Edo., MÈxico. Leaf architecture of Anacardiaceae, phylogeny and biogeography.

2:45 9-10 SAWANGCHOTE, PRAKART*, PAUL J. GROTE, and DAVID L. DILCHER. Suranaree University of Technology, Nakhon, Ratchasima, Thailand, and Florida Museum of Natural History, Gainesville. On the search for living counterparts of Tertiary anacardiaceous leaf fossils from Li Basin, northern Thailand.

3:00 9-11 WANG, XIN* and DAVID DILCHER. Florida Museum of Natural History, Gainesville. Mesofossils from Mid-Cretaceous Sediments in Kansas.

3:15 BREAK

3:30 9-12 TOMESCU, ALEXANDRU MIHAIL FLORIAN* and GAR W. ROTHWELL. Ohio University, Athens. Evidence for a terrestrial biota in Lower Silurian (Llandoverian) carbonate shoreline deposits of Ohio.

3:45 9-13 KELLOGG, DEREK W.* and EDITH L. TAYLOR. University of Kansas, Lawrence. Evidence of wood-boring mites from the Paleozoic and Mesozoic of Antarctica.

4:00 9-14 LANDRY, MARK C.* and LES C. CWYNAR. University of New Brunswick, Fredericton, NB, Canada. Assessing the residency of an endangered costal flora species, Drosera filiformis in three bogs of Shelburne County, Nova Scotia, Canada.

4:15 9-15 GARCIA-MASSINI, JUAN LEANDRO. University of Kansas, Lawrence. Fungal palynomorphs from the Cullen Formation (Miocene), Tierra del Fuego, southern Argentina.

4:30 9-16 DUNN, MICHAEL T.*, GAR W. ROTHWELL, and GENE MAPES. Ohio University, Athens. A permineralized lyginopterid seed fern from the Fayetteville Formation (Middle Chesterian/Upper Mississippian) of northwestern Arkansas.

Presiding: ANITRA THORHAUG, Florida International University, 1359 SW 22 Terrace, Miami, FL 33145. Tele: (305) 858-0014, E-mail: thorhaug@msn.com .

1:00 10-1 THORHAUG, ANITRA. Florida International University, Miami. Introduction.

1:15 10-2 SELISKAR, DENISE. University of Delaware, Lewes. Salt marsh restoration: Does plant genotype selection make a difference?

1:45 10-3 TEAS, HOWARD J. University of Miami, FL. Restoration of mangrove shorelines in the USA.

2:15 10-4 THORHAUG, ANITRA. Florida International University, Miami. Seagrass restoration in the USA.

2:45 BREAK

3:00 10-5 BOHANIN, ROBERT. Center for Biology Education, Madison, Wisconsin. Restoration of prairies as teaching tools.

3:30 10-6 LEACH, MARK. University of Wisconsin at Madison. Restoration of oak savannas.

Presiding: JERROLD I. DAVIS, Bailey Hortorium and Department of Plant Biology, Cornell University, Ithaca, NY 14853. Tele: (607) 255-7980, E-mail: jid1@cornell.edu .

1:00 11-1 DEPAMPHILIS, CLAUDE1*, VICTOR ALBERT2, JOHN E. CARLSON1, JEFF J. DOYLE3, DAWN FIELD4, MICHAEL FROHLICH5, HONG MA1, WEBB MILLER1, DAVID OPPENHEIMER6, DOUGLAS SOLTIS7, PAMELA SOLTIS7, STEVEN TANKSLEY8, and GUENTER THEISSEN9. 1Penn State University, University Park, PA; 2University of Oslo, Norway; 3Cornell University, Ithaca, NY; 4C.E.H., Oxford, United Kingdom; 5British Museum of Natural History, London, United Kingdom; 6University of Alabama, Tuscaloosa; 7University of Florida, Gainesville; 8Cornell University, Ithaca, NY; 9Max Planck Institute for Breeding Research, K–ln, Germany. The floral genome project.

1:15 11-2 SANG, TAO* and CHANGBAO LI. Michigan State University, East Lansing. Systematics meets functional genomics in Oryza (Poaceae).

1:30 11-3 GARGAS, ANDREA1* and PAULA T. DEPRIEST2. 1University of Wisconsin, Madison; 2Smithsonian Institution, Washington, DC. Diagnosis of cryptic microbes based on ITS2 rRNA secondary structure information.

1:45 11-4 WHITSON, MARY KATHRYN. Duke University, Durham, NC. Interspecific ITS sequence variation in the U.S. perennial Physalis (Solanaceae).

2:00 11-5 COLEMAN, ANNETTE W. Brown University, Providence, RI. Do the oaks really contain pseudogenes of ITS repeats?

2:15 11-6 XIANG, (JENNY) QIUYUN1*, MICHAEL MOODY2, DOUGLAS E. SOLTIS3, and PAMELA S. SOLTIS3. 1North Carolina State University, Raleigh; 2University of Connecticut, Storrs; 3University of Florida, Gainesville. Effects of outgroups and long branches An experiment with RASA and data from Cornales.

2:30 11-7 JANSEN, ROBERT K.1*, LI-SAN WANG1, TANDY WARNOW1, LINDA A. RAUBESON2, and BERNARD M. E. MORET3. 1University of Texas, Austin; 2Central Washington University, Ellensburg; 3University of New Mexico, Albuquerque. Comparisons of parsimony methods for phylogeny reconstruction from gene order data.

2:45 11-8 SALAMIN, NICOLAS1,2 and VINCENT SAVOLAINEN2* 1Trinity College Dublin, Ireland; 2Royal Botanic Gardens, Kew, Richmond, Surrey, UK. Towards a complete phylogenetic tree of angiosperm genera: a simulation study.

3:00 BREAK

3:15 11-9 DAVIS, JERROLD I.*, KEVIN C. NIXON, and DAMON P. LITTLE. L.H. Cornell University, Ithaca, NY. A conventional analysis of the 500-terminal rbcL data set.

3:30 11-10 LITTLE, DAMON P.* and KEVIN C. NIXON. Cornell University, Ithaca, NY. Speed, efficiency, and more data in cladistic analysis.

3:45 11-11 SIMMONS, MARK P.1* and JOHN V. FREUDENSTEIN2. 1Colorado State University, Fort Collins; 2The Ohio State University, Columbus. Phylogenetic reconstruction from duplicate genes via uninode coding or gene-tree parsimony.

4:00 11-12 KELCHNER, SCOT A. Australian National University, Canberra, Australia. Heterogeneous models for phylogeny estimation: combining data and partitions for Myoporaceae.

4:15 11-13 SIMMONS, MARK P.1*, JOHN V. FREUDENSTEIN2, KURT M. PICKETT2, and JOHN W. WENZEL2. 1Colorado State University, Fort Collins; 2The Ohio State University, Columbus. Whither phenotypic characters in the age of genomics?

4:30 11-14 KIRCHOFF, BRUCE. The University of North Carolina, Greensboro. Do rich data allow greater inter-investigator agreement in character states?

Presiding: MARK E. MORT, Department of Ecology and Evolutionary Biology and the Museum of Natural History, University of Kansas, Lawrence, KS, 66045. Tele: (785) 864-5706, E-mail: memort@ku.edu .

1:00 12-1 SCHARASCHKIN, TANYA1*, JAMES A. DOYLE1, and LARS W. CHATROU2. 1University of California, Davis; 2National Herbarium of the Netherlands, Utrecht, The Netherlands. Implications of morphological and molecular phylogenetic analysis for the biogeographic history of Anaxagorea (Annonaceae).

1:15 12-2 WHITE, PAMELA J.1,2* and DENNIS WM. STEVENSON2. 1Cornell University, Ithaca, NY; 2The New York Botanical Garden, Bronx. Phylogenetic relationships and character evolution in the Menispermaceae.

1:30 12-3 PFOSSER, MARTIN1, TOD STUESSY1*, BYUNG-YUN SUN2, YAN-PING GUO1, CHANG GEE JANG1, and JOHANNA JANKOWICZ1. 1University of Vienna, Austria; 2Chonbuk National University, Chonju, Korea. Genetic changes during speciation of Hepatica maxima (Ranunculaceae), endemic to Ullung Island, Korea.

1:45 12-4 MOODY, MICHAEL L.* and DONALD H. LES. University of Connecticut, Storrs. Foiled again: Hybridity in invasive hydrophyte populations.

2:00 12-5 MORT, M. E. University of Kansas, Lawrence. Preliminary insights into the phylogeny of Crassulaceae inferred from sequences of the nuclear ribosomal internal transcribed spacer regions (ITS1 & ITS2).

2:15 12-6 WILSON, CAROL A.* and CLYDE L. CALVIN. Portland State University, OR. Morphological and evolutionary patterns in the Loranthaceae.

2:30 12-7 HORN, JAMES W. Duke University, Durham, NC. Phylogenetics of the Dilleniaceae.

2:45 12-8 O'QUINN, ROBIN* and LARRY HUFFORD. Washington State University, Pullman. Phylogenetic relationships in Montieae (Portulacaceae) based on DNA sequences from nrITS.

3:00 BREAK

3:15 12-9 GRIFFITH, M. PATRICK. Rancho Santa Ana Botanic Garden, Claremont, CA. Phylogenetic relationships in the Opuntioideae (Cactaceae) based on nrITS sequences.

3:30 12-10 PRATT, DONALD B.*, LYNN G. CLARK, and ROBERT S. WALLACE. Iowa State University, Ames. Trends in the morphological evolution of the Chenopodiaceae-Amaranthaceae alliance.

3:45 12-11 MUELLER, KAI F.* and THOMAS BORSCH. Friedrich-Wilhelms-Universitaet Bonn,Germany. A phylogeny based on matK sequence data reveals patterns of pollen evolution in Amaranthaceae.

4:00 12-12 MCCAULEY, ROSS A. Ohio University, Athens. Toward a preliminary phylogeny of the American Gomphrenoideae (Amaranthaceae): Morphology and ITS1 sequences.

4:15 12-13 MCCAULEY, ROSS A. Ohio University, Athens. Phylogenetic relations and new combinations in the North American species of Froelichia (Amaranthaceae).

4:30 12-14 CAMERON, KENNETH M.1*, KENNETH J. WURDACK1, and RICHARD W. JOBSON1,2. 1The New York Botanical Garden, Bronx; 2University of Queensland, Brisbane, Australia. Aldrovanda is sister to Dionaea (Droseraceae): Molecular evidence for the common origin of snap-traps among carnivorous plants.

Presiding: ROBERTA J. MASON-GAMER, Department of Biological Sciences, University of Illinois, Chicago, IL 60607. Tele: (312) 996-4537, E-mail: robie@uic.edu .

1:00 13-1 STARR, JULIAN R.1,2*, STEPHEN A. HARRIS1, and DAVID A. SIMPSON3. 1University of Oxford, United Kingdom.; 2UniversitÈ de MontrÈal, QC, Canada; 3Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom. Nuclear phylogeny of tribe Cariceae (Cyperaceae), with emphasis on the relationships of the genus Uncinia Pers.

1:15 13-2 YOUNG, LAURA A.*, MIA MOLVRAY, and PAUL KORES. University of Oklahoma, Norman. Phylogenetic relationships in Schoenoplectus (Cyperaceae) using ITS and trnL sequence data.

1:30 13-3 DRAGON, JULIE A.* and DAVID S. BARRINGTON. University of Vermont, Burlington. In search of evolutionary lineages: Two monophyletic groups within a paraphyletic Carex acuta complex, section Phacocystis (Cyperaceae).

1:45 13-4 HIPP, ANDREW L.1 and PAUL E. ROTHROCK2.* 1University of Wisconsin, Madison; 2Taylor University, Upland, IN. Phylogeny and character evolution in the Eastern North American members of Carex section Ovales (Cyperaceae): Evidence from AFLP data and DNA sequences.

2:00 13-5 WATERWAY, MARCIA J.*, TARA MCKAY, SOFIA FUGA, and CAROLINE GALLANT. McGill University, Ste. Anne de Bellevue, QC, Canada. Hybridization in Carex: insights from molecular systematics.

2:15 13-6 MICHELANGELI, FABIAN A.1*, JERROLD I DAVIS2, and DENNIS WM. STEVENSON3. 1American Museum of Natural History, New York, NY; 2Cornell University, Ithaca, NY; 3New York Botanical Garden, Bronx. Phylogenetic relationships among Poaceae and related families as inferred from morphology, chloroplast structure, and sequence data from the mitochondrial and plastid genomes.

2:30 13-7 BARBER, JANET C.1*, SANDRA S. ALISCIONI2, LILIANA M. GIUSSANI2, JEFFREY D. NOLL3, MELVIN R. DUVALL4, and ELIZABETH A. KELLOGG1. 1University of Missouri, St. Louis; 2Instituto de Botanica Darwinion, Buenos Aires, Argentina; 3Iowa State University, Ames; 4Northern Illinois University, DeKalb. Combined analyses of three independent datasets to investigate phylogeny of Poaceae subfamily Panicoideae.

2:45 13-8 DUVALL, MELVIN R.*, DAYLE E. SAAR, W. SCOTT GRAYBURN, and GABRIEL P. HOLBROOK. Northern Illinois University, DeKalb. Phylogenetics of the C3 - C4 intermediate species Steinchisma hians (=Panicum milioides, Poaceae): Evidence for multiple origins and loss of the C4 syndrome in one taxonomic tribe.

3:00 BREAK

3:15 13-9 NEVES, SUSANA S.1, LAWRENCE A. ALICE2*, and KHIDIR W. HILU1. 1Virginia Polytechnic Institute and State University, Blacksburg; 2Western Kentucky University, Bowling Green. The root of the Chloridoideae (Poaceae) revisited: A preliminary assessment based on trnT-trnF and matK DNA sequences.

3:30 13-10 MASON-GAMER, ROBERTA J. University of Illinois, Chicago. Phylogenetic analysis of allohexaploid Elymus repens (Poaceae) using chloroplast genome and nuclear starch synthase gene sequences.

3:45 13-11 SANCHEZ-KEN, J. GABRIEL* and LYNN G. CLARK. Iowa State University, Ames. Systematic analysis of the genus Zeugites (Centothecoideae, Poaceae).

4:00 13-12 SAARELA, JEFFERY M.1*, PAUL M. PETERSON2, ROBERT J. SORENG2, and RALPH E. CHAPMAN2. 1University of Alberta, Edmonton, Canada; 2Smithsonian Institution, Washington, DC. Taxonomy of Brachyelytrum (Poaceae) based on morphology and phytogeography.

4:15 13-13 BARKWORTH, MARY E. Utah State University, Logan. Echinochloa crusgalli and E. muricata (Gramineae): Disentangling distributional data.

4:30 13-14 SPECHT, CHELSEA D.* and DENNIS WM. STEVENSON. New York Botanical Garden, Bronx. Phylogenetics of Costaceae (Zingiberales): Untangling complex characters with morphological and molecular data.

Presiding: PAUL ZIMBA,U.S.D.A./A.R.S., PO Box 38, Stoneville, MS 38776. Tele: (504) 686-3588, E-mail: pzimba@ars.usda.gov .

1:00 14-1 ZIMBA, PAUL. U.S.D.A./A.R.S. Stoneville, MS. Opening remarks.

1:15 14-2 JASKOWIAK, MEGAN A.*, KAREN P. FAWLEY, and MARVIN W. FAWLEY. North Dakota State University, Fargo. An examination of the effects of a reservoir, Lake Ashtabula, on the periphytic algae in the Sheyenne River, North Dakota.

1:30 14-3 FIERST, JANNA LYNN*, JANET KUBLER, and STEVE R. DUDGEON. California State University, Northridge. Spatial and temporal distribution of life history variants in the red alga, Mastocarpus papillatus.

1:45 14-4 PIASECKI, BRIAN*, YANG FAN, KENNETH R. DILLER, AND JERRY J. BRAND. University of Texas at Austin, Austin, TX. Survival of Chlamydomonas subsequent to cryopreservation is prevented by a substance released from damaged cells.

2:00 14-5 FRISCH, S.M.* and S.N. MURRAY. California State University, Fullerton. The diversity and availability of Caulerpa species found in retail aquarium outlets in southern California, USA.

2:15 14-6 GURGEL, CARLOS FREDERICO D.^1,2* AND SUZANNE FREDERICQ². ¹Universidade Federal do Rio de Janeiro, RJ, Brazil; ²University of Louisiana, Lafayette. Phylogeny of the Gracilariaceae (Gracilariales, Rhodophyta) inferred from rbcL sequence analysis: Taxonomic implications.

2:30 14-7 GAVIO, BRIGITTE. University of Louisiana, Lafayette. New insights in the Cryptonemiales-Rhodymeniales complex and resurrection of the allied red algal order Nemastomatales Kylin 1925 as inferred from rbcL sequence analysis and comparative reproductive morphology.

2:45 14-8 HOYER, KIRSTEN¹*, ULF KARSTEN², and CHRISTIAN WIENCKE¹. ¹Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; ²University of Rostock, Rostock, Germany. MAA synthesis and accumulation in polar macroalgae are controlled by abiotic factors.

3:00 BREAK

3:15 14-9 WHITEHEAD, KENIA* and JOHN I HEDGES. University of Washington, Seattle. The use of liquid chromatography-mass spectrometry (LC-MS) in the identification and characterization of mycosporine-like amino acids (MAAs).

3:30 14-10 MCELHINNEY¹*, J. CRAIG BAILEY¹, AND ROBERT A. ANDERSEN². ¹University of North Carolina, Wilmington; ²Bigelow Laboratory for Ocean Sciences, W. Boothbay Harbor, ME. Phylogenetic analysis of the Mischococcales, Tribonematales, and Vaucheriales (Xanthophyceae) inferred from 18S rRNA gene sequences.

3:45 14-11 WYSOR, BRIAN. University of Louisiana, Lafayette. The Central American Isthmus: Implications for intraspecific phylogeny and biogeography of a pantropical green alga.

4:00 14-12 CASAMATTA, DALE A.¹*, MORGAN L. VIS¹, AND ROBERT G. SHEATH². ¹Ohio University, Athens; ²California State University, San Marcos. Phormidium retzii (Oscillatoriales): Genotypic variation and phenotypic plasticity.

4:15 14-13 TIFFANY, MARY ANN. San Diego State University, San Diego. Development of valves in the marine diatom genus Trigonium.

4:30 14-14 STEPHEN W. SNYDER, KENNETH G. KAROL, CHARLES F. DELWICHE. University of Maryland, College Park. Phylogeny of Klebsormdium (Klebsormidiales; Charophyta) based on rbcL, atpB, coxIII and nad5 sequence data.

Organized by: DENIS BARABE, Montreal Botanical Garden, 4101 Sherbrooke E., Montreal, Quebec, Canada, H1X 2B2. Tele: (514) 872-1435, E-mail: barabed@ERE.umontreal.ca; NANCY G. DENGLER, Department of Botany, University of Toronto, Toronto, Ontario, Canada, M5S 1A1. Tele: (416) 978-3536, E-mail: dengler@botany.utoronto.ca; and JUDITH CANNE-HILLIKER, Department of Botany, University of Guelph, Guelph, Ontario, Canada, N1G 2W1. Tele: (519) 824-4120 ext. 2767, E-mail: jcannehi@uoguelph.ca .

Presiding: NANCY G. DENGLER, University of Toronto, Ontario, Canada.

1:30 15-1 GLEISSBERG, STEFAN. University of Mainz, Germany. Leaf diversification across angiosperms.

2:00 15-2 BHARATHAN, GEETA¹*, TOM GOLIBER², and NEELIMA SINHA². ¹State University of New York, Stony Brook; and ²University of California, Davis. Using trees to understand leaves: Phylogenetic and developmental patterns.

2:30 15-3 DOUST, ANDREW and ELIZABETH A. KELLOGG. University of Missouri, St. Louis. Patterns of inflorescence evolution in grasses: Evidence from phylogeny and developmental morphology.

3:00 BREAK

3:15 15-4 CANNE-HILLIKER, JUDY¹*, TOM HAZLE², and LARA YACOB³. ¹University of Guelph, Guelph, Ontario, Canada, ²University of Ottawa, Ottawa, Ontario, Canada; ³United Nations, New York, NY. Ontogeny and phylogeny of the Erythranthe clade of Mimulus (Scrophulariaceae s. l.) and Myoporaceae.

3:45 15-5 EVANS, RODGER C.¹* and TIMOTHY A. DICKINSON². ¹Acadia University, Wolfville, NS, Canada; ²Royal Ontario Museum, Toronto, ON, Canada. An untapped source of characters: Insights into phylogeny from ontogenetic studies of pistils and ovules in Rosaceae.

4:15 15-6 HUFFORD, LARRY. Washington State University, Pullman. Ontogenetic evolution and patterns of morphological diversity.

4:45 Discussion

Organized by: Jeffrey D. Karron, Department of Biological Sciences, P.O. Box 413, University of Wisconsin-Milwaukee, Milwaukee, WI 53201. Tele: (414) 229-6003, E-mail: karron@uwm.edu, and Michele R. Dudash, Department of Biology, University of Maryland, College Park, MD 20742. Tele: (301) 405-1642, E-mail: md59@umail.umd.edu .

Presiding: Michele R. Dudash, University of Maryland, College Park.

1:30 16-1 McArthur, E. Durant. USDA Forest Service, Provo, UT. Dr. Robert K. Vickery, Jr., scientist and mentor: Contributions to Mimulus genetics, evolution, ecology, and systematics.

2:00 16-2 Mitchell, Randall J.¹*, Jeffrey D. Karron², Karsten Holmquist², and John Bell². ¹University of Akron, Ohio; ²University of Wisconsin-Milwaukee. The influence of Mimulus ringens floral display size on patterns of pollinator visitation.

2:30 16-3 Karron, Jeffrey D.¹*, Randall J. Mitchell², John M. Bell¹, Karsten G. Holmquist¹, and Benjamin Funk¹. ¹University of Wisconsin-Milwaukee; ²University of Akron, Akron, OH. The influence of Mimulus ringens floral display size on self-fertilization rates and patterns of paternity.

3:00 Break

3:30 16-4 Galloway, Laura F. University of Virginia, Charlottesville. Plasticity of sex allocation in Mimulus guttatus: Comparisons among ecologically different populations.

4:00 16-5 Kelly, John K. University of Kansas, Lawrence. Testing alternative hypotheses for the maintenance of genetic variation in flower size.

4:30 16-6 Willis, John H.* and Lila Fishman. Duke University, Durham, NC. The genetic basis of floral divergence and reproductive isolation between selfing and outcrossing Mimulus species.

5:00 16-7 Dudash, Michele R. University of Maryland, College Park. Concluding remarks.

5:15 Discussion: Future research directions.

Organized by: David M. Spooner, USDA, Agricultural Research Service, Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706-1590. Tele: (608) 262-0159 E-mail: dspooner@facstaff.wisc.edu .

Presiding: DAVID M. SPOONER, University of Wisconsin, Madison.

1:30 17-1 SPOONER, DAVID M. USDA, Agricultural Research Service, University of Wisconsin, Madison. Introduction.

1:45 17-2 SPOONER, DAVID M. USDA, Agricultural Research Service, University of Wisconsin, Madison. Evolution and cultivar-group classification of cultivated potatoes.

2:15 17-3 BOHS, LYNN. University of Utah, Salt Lake City. The origin and evolution of the tree tomato, Solanum betaceum.

2:45 BREAK

3:00 17-4 PROHENS, JAIME¹*, GREGORY J. ANDERSON², AND FERNANDO NUEZ¹. ¹Universidad Politecnica de Valencia, Valencia, Spain; ²University of Connecticut, Storrs. The status and prospects for future breeding of the pepino.

3:30 17-5 NEE, MICHAEL. New York Botanical Garden, Bronx. Possibilities for new edible plants among the Solanaceae.

4:00 DISCUSSION

Presiding: DAVID S. BARRINGTON, Pringle Herbarium, Department of Botany, University of Vermont, Burlington, VT 05405. Tele: (802) 656-0431, E-mail: dbarring@zoo.uvm.edu .

2:15 18-1 METZGAR, JORDAN S.* and JEFF J. DOYLE. Department of Plant Biology, Cornell University, Ithaca, NY. The Appalachian Asplenium complex revisited . . . again.

2:30 18-2 PRYER, KATHLEEN M.¹* and HARALD SCHNEIDER². ¹Duke University, Durham, NC; ²University of Goettingen, Germany. A phylogeny for extant heterosporous ferns.

2:45 18-3 REID, JILL D.*, GREGORY M. PLUNKETT, and GERALD A. PETERS. Virginia Commonwealth University, Richmond. Systematics of the genus Azolla (Azollaceae).

3:00 BREAK

3:15 18-4 MORAN, ROBBIN¹, SUSAN KLIMAS², and MONICA CARLSEN.³* ¹The New York Botanical Garden, Bronx; ²University of Wisconsin-Madison; ³University of Missouri-St. Louis. Comparison of epiphytic ferns on tree ferns versus angiosperm trunks in Costa Rica.

3:30 18-5 LOPEZ-SMITH, RENEE* and KAREN S. RENZAGLIA. Southern Illinois University, Carbondale. Comparisons between pre-released and swimming sperm cells of Lygodium japonicum.

3:45 18-6 AMOROSO, CECILIA BELTRAN. Central Mindanao University, Philippines. Spore culture of Lycopodium clavatum L.

Presiding: GERALD SEILER, USDA-ARS, Northern Crop Science Lab, P.O. Box 5677, Fargo, ND 58105. Tele: (701) 239-1380, E-mail:seilerg@fargo.ars.usda.gov .

3:00 19-1 LIMA, RAQUEL DA NOGUEIRA¹*, DALVA MARIA BUENO², ARLETE APARECIDA SOARES³ and RENATO DE AZEVEDO MOREIRA¹. Federal University of Ceara, Fortaleza, Brazil. Cashew tree exudates gum biological characterization: A new biotechnological tool for tropical countries.

3:15 19-2 JOHNSON, EMANUEL L. USDA-ARS, Beltsville, MD. Flavonoids as chemotaxonomic markers of Erythroxylum australe.

3:30 19-3 SEILER, GERALD. USDA-ARS, Fargo, ND. Saturated palmitic and stearic fatty acids in populations of Helianthus annuus from the Central US Great Plains.

3:45 19-4 SCHANEBERG, BRIAN T¹., WENDY L. APPLEQUIST²*, AND IKHLAS A. KHAN¹. ¹Universitiy of Mississippi, University; ²Missouri Botanical Garden, St. Louis. Is wild ginger toxic? Aristolochic acid content of North American species of Aristolochiaceae.

Presiding: JAMES W. WALLACE, Department of Biology, Western Carolina University, Cullowhee, NC 38723. Tele (704) 227-7244

Presiding: W. Carl Taylor, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Tele: (414) 278-2760, E-mail: ct@mpm.edu .

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

Speaker: SYLVIA EARLE, National Geographic Society. Diving into the history and possible future of plants in the sea.

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

Presiding: DIANNE FAHSELT, University of Western Ontario, Department of Plant Sciences, London, ON N6A 5B7, Canada. Tele: (519) 679-2111 ext 6480

Presiding: PAMELA K. DIGGLE, Department of EPO Biology, University of Colorado, Boulder CO 80309-0334. Tele: (303) 492-4860, E-mail: diggle@spot.colorado.edu.

Presiding: DENIS BARABŠ, IRBV - Jardin botanique de MontrÈal, 4101, rue Sherbrooke est, MontrÈal,QC H1X 2B2, Canada. Tele: (514) 872-1436, E-mail: .

Presiding: Annette W. Coleman, BioMed, Brown University, Providence, RI 02912, Tele: (401) 863-3917, E-mail: Annette_Coleman@brown.edu; and Mark W. Chase, Jodrell Lab, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK, Tele: 44-20-8332-5364, E-mail: m.chase@rbgkew.org.uk .