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

WEDNESDAY, 7 AUGUST

Presiding: DIETER WILKEN, Santa Barbara Botanic Garden, 1212 Mission Canyon Road, Santa Barbara, CA 93105. Tele: (805) 682-4726, E-mail: dwilken@sbbg.org.

Organized by: DANILO FERNANDO, College of Environmental Science and Forestry, 350 Illick Hall, State University of New York, Syracuse, NY 13210. Tele: (315) 470-6746, E-mail: fernando@esf.edu ; and DAVID D. GIFFORD, Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada. E-mail: david.gifford@ualberta.ca .

Presiding: DAVID D. GIFFORD, University of Alberta, Edmonton, Canada and DANILO FERNANDO, State University of New York, Syracuse.

8:00 43-1 FERNANDO, DANILO. State University of New York, Syracuse. Characterization of proteins expressed in conifer pollen tubes.

8:15 43-2 LAZZARO, MARK. College of Charleston, Charleston, SC. Conifer pollen tubes as a model system for the cytoskeleton's role in polarized growth.

8:45 43-3 MISRA, SANTOSH. University of Victoria, Victoria, BC., Canada. Douglas fir seeds - a molecular perspective.

9:15 43-4 GIFFORD, DAVID. University of Alberta, Edmonton, Canada. Structural and biochemical changes in loblolly pine seeds during germination and early seedling growth.

9:45 BREAK

10:00 43-5 RUNIONS, JOHN. University of Cambridge, UK. Pollination mechanisms of conifers: Evolutionary elaboration on a common theme.

10:30 43-6 FRIEDMAN, WILLIAM. University of Colorado, Boulder. Mate choice in conifers: The dynamics of male-female interactions and phenotypic plasticity in female gametophyte development.

11:00 43-7 STOCKEY, RUTH. University of Alberta, Edmonton, Canada. Reproductive biology of fossil araucarian conifers.

11:30 43-8 ROTHWELL, GAR. Ohio University, Athens. Paleontological evidence for the evolution of conifer reproduction.

Presiding: JOHN V. FREUDENSTEIN, Ohio State University Herbarium and the Department of Evolution, Ecology and Organismal Biology, Columbus, OH 43210. Tele: (614) 688-0363, E-mail: freudenstein.1@osu.edu .

8:00 44-1 FAN, CHUANZHU* and (JENNY) QIU-YUN XIANG. North Carolina State University, Raleigh. Sequence variation of flower anthocyanin regulatory gene in dwarf dogwoods (Cornus L. Cornaceae) - Potential utility in studying gene evolution in hybrids and polyploids.

8:15 44-2 POWELL, E. ANN* and KATHLEEN A. KRON. Wake Forest University, Winston-Salem, NC. Interesting biogeographical patterns in a “distinctive genus” of neotropical blueberry, Satyria (Vaccinieae, Ericaceae).

8:30 44-3 FREUDENSTEIN, JOHN V.1* and FRED W. CASE2. 1Ohio State University, Columbus; 2Cranbrook Institute of Science, Bloomfield Hills, MI. Relationships among pitcher plant species (Sarracenia) based on plastid DNA sequence analysis.

8:45 44-4 JOHNSON, LEIGH A.*, TERRI L. WEESE, and NANCEY K. LILJENQUIST. Brigham Young University, Provo, UT. Phylogenetic potential of IDH sequences in Polemoniaceae I: Copy number and gene organization.

9:00 44-5 WEESE, TERRI L.*, LEIGH A. JOHNSON, and WHITNEY C. DUPREE. Brigham Young University, Provo, UT. Phylogenetic potential of IDH sequences in Polemoniaceae II: Levels of variability and correspondence with ITS and plastid genealogies.

9:15 44-6 PRATHER, L. ALAN1*, ANNA K. MONFILS1, and DAVID C. JARRELL2. 1Michigan State University, East Lansing; 2Mary Washington College, Fredericksburg, VA. Evolution and lability of floral characters in the Polemoniaceae subfamily Cobaeoideae.

9:30 44-7 FERGUSON, CAROLYN J.1*, SUZANNE C. STRAKOSH1, MARGARET SIDELLS2, and ROBERT PATTERSON2. 1Kansas State University, Manhattan; 2San Francisco State University, CA. Phylogeny and geographic relations of Phlox (Polemoniaceae).

9:45 44-8 MAST, AUSTIN1*, D. SKY FELLER1, JUERG SCHOENENBERGER1, SYLVIA KELSO2, DANIELA LANG1, and ELENA CONTI1. 1University of Zurich, Switzerland; 2Colorado College, Colorado Springs. Implications of a seven-region cpDNA phylogeny and a micro-morphological survey to our understanding of floral evolution in the shooting stars (Dodecatheon) and their closest relatives among the primroses (Primula; Primulaceae)

10:00 BREAK

10:15 44-9 SCHNEEWEISS, GERALD M.1*, PETER SCHOENSWETTER1, SYLVIA KELSO2, and HARALD NIKLFELD1. 1University of Vienna, Austria; 2The Colorado College, Colorado Springs. Patterns of disjunction and relationships within Androsace (Primulaceae).

10:30 44-10 LISTON, AARON. Oregon State University, Corvallis. A new interpretation of floral morphology in the genus Garrya (Garryaceae).

10:45 44-11 SAWYER, NEIL W. University of Wisconsin, Whitewater. Systematics of Deprea and Larnax (Solanaceae) in relation to genera of tribe Physaleae based on morphological evidence.

11:00 44-12 STEFANOVIC, SASA* and RICHARD G. OLMSTEAD. University of Washington, Seattle. Narrowing down the phylogenetic position of the parasitic genus Cuscuta (Convolvulaceae): Evidence from all three plant genomes and implications for chloroplast genome evolution.

11:15 44-13 MCNEAL, JOEL R.* and CLAUDE W. DEPAMPHILIS. Pennsylvania State University, University Park. Molecular systematics and chloroplast genome evolution of the parasitic plant genus Cuscuta.

11:30 44-14 BOYD, AMY E. Warren Wilson College, Asheville, NC. Phylogenetic relationships and corolla size evolution among Macromeria (Boraginaceae).

11:45 44-15 STRUWE, LENA. Rutgers University, New Brunswick, NJ. Overview of the new classification of the gentian family (Gentianaceae: Asteridae).

12:00 44-16 GOULD, KATHERINE R.1* and LENA STRUWE2. 1Rutgers University, New Brunswick, NJ. Phylogeny, biogeography and floral evolution of Symbolanthus and Wurdackanthus (Gentianaceae-Helieae) in the Guayana Highlands and Andes, based on ribosomal 5S-NTS sequences and morphology.

Presiding: RICHARD G. OLMSTEAD, Department of Botany, University of Washington, Seattle, WA 98195. Tele: (206) 543-8850, E-mail: olmstead@u.washington.edu .

8:00 45-1 CHUMLEY, TIMOTHY W.1*, HAE-LIM LEE2, KI-JOONG KIM2, and ROBERT K. JANSEN1. 1The University of Texas, Austin; 2Yeungnam University, Kyeungsan, Korea. Phylogeny and biogeography of Menodora (Oleaceae).

8:15 45-2 PEIRSON, JESS A. Ohio University, Athens. Systematic studies of Collinsonia (Lamiaceae).

8:30 45-3 BUNSAWAT, JIRANAN* and LAWRENCE A. ALICE. Western Kentucky University, Bowling Green. Mentha (Lamiaceae) phylogenetic analysis using TrnL-TrnF and ITS sequences.

8:45 45-4 WALKER, JAY B.1*, KENNETH J. SYTSMA1, and MICHAEL WINK2. 1University of Wisconsin, Madison; 2Universitat Heidelberg, Germany. Salvia (Lamiaceae) is not monophyletic: Implications for the systematics, radiation, and ecological specializations of Salvia and subf. Nepetoideae.

9:00 45-5 OLIVEIRA, LUIZ O.1,2*, ROBIN B. HUCK1, PAMELA SOLTIS1, and DOUGLAS SOLTIS1. 1University of Florida, Gainesville; 2Federal University of Vicosa, Brazil. Molecular phylogeny and biogeography of Dicerandra (Lamiaceae), a genus endemic to the Southeastern United States.

9:15 45-6 EDWARDS, CHRISTINE E.*, PAMELA S. SOLTIS, DOUGLAS E. SOLTIS, and MATTHEW GITZENDANNER. University of Florida, Gainesville. A molecular phylogeny of the genus Conradina (Lamiaceae).

9:30 45-7 TAYLOR, ROBIN M. Northern Arizona University, Flagstaff. The phylogeny and adaptive radiation of Salvia pachyphylla (Lamiaceae).

9:45 45-8 HUANG, MINGJUAN*, JOHN V. FREUDENSTEIN, and DANIEL J. CRAWFORD. Ohio State University, Columbus. Systematics of Trichostema L. (Lamiaceae): Evidence from ITS, ndhF, and morphology.

10:00 BREAK

10:15 45-9 DANIEL, THOMAS F. California Academy of Sciences, San Francisco. Acanthaceae of Honduras: Why so few species?

10:30 45-10 MCDADE, LUCINDA A.1*, THOMAS F. DANIEL2, and SUSAN E. FOOSE1. 1Academy of Natural Sciences, Philadelphia, PA; 2California Academy of Sciences, San Francisco, CA. Phylogenetic relationships among Acantheae (Acanthaceae): Taxonomic, biogeographic and morphological implications.

10:45 45-11 OLMSTEAD, RICHARD G.1*, MICHELLE L. ZJHRA2, SUSAN O. GROSE1, ANDREW J. ECKERT1, and RUSSELL E. SPANGLER3. 1University of Washington, Seattle; 2Keene State College, NH; 3 University of Minnesota, St. Paul. Molecular phylogeny, evolution, and classification of the Bignoniaceae.

11:00 45-12 ROSE, SUSAN O.* and RICHARD G. OLMSTEAD. University of Washington, Seattle. Patterns of evolution in Bignoniaceae: The Tabebuia / Crescentieae conundrum.

11:15 45-13 LOHMANN, LUCIA G. University of Missouri-St.Louis. Phylogeny and morphological evolution of Bignonieae (Bignoniaceae).

11:30 45-14 WALLICK, KYLE1, WAYNE ELISENS2*, and PAUL KORES2. 1U.S. Botanic Garden, Washington, DC; 2University of Oklahoma, Norman. Phylogenetic analysis of trnL-F sequence variation indicates a monophyletic Buddlejaceae and a paraphyletic Buddleia.

11:45 45-15 SMITH, JAMES F.1*, DAVID A. BAUM2, and LENA HILEMAN3. 1Boise State University, ID; 2University of Wisconsin-Madison; 3Harvard University Herbaria, Cambridge, MA. Floral evolution and phylogenetic analysis of tribes Gloxinieae and Gesnerieae (subfamily Gesnerioideae: Gesneriaceae) with an emphasis on GCYC (a Gesneriaceae CYCLOIDEA homolog).

12:00 45-16 ROALSON, ERIC H.1*, LAURENCE E. SKOG2, JOHN K. BOGGAN2, and ELIZABETH A. ZIMMER2. 1Washington State University, Pullman; 2Smithsonian Institution, Washington, DC. Generic boundaries in the Gloxinieae (Gesneriaceae): Tracking diversification and convergence in floral form with nuclear, chloroplast, and morphological cladistic data sets.

Presiding: Roger C. Anderson, Department of Biological Sciences, Illinois State University, Normal, IL 61790-4120. Tele: (309) 438-2653, E-mail: rcander@ilstu.edu.

8:00 46-1 Anderson, Roger C.¹*, Nelson Debra^1,2, and Marcia A. Rickey^{1. 1}Illinois State University, Normal; ²Illinois Department of Natural Resources, Spring Grove. Response of prairie forbs to whitetailed deer browsing.

8:15 46-2 KOPTUR, SUZANNE¹*, JAMES R. SNYDER², MICHAEL S. ROSS¹, CHRIS K. BORG¹, and HONG LIU¹. ¹Florida International University, Miami; ²USGS, Biological Resources Division, Ochopee, FL. Selective grazing by Key Deer after fire changes plant morphology, reproduction, and species composition in pine rockland understory.

8:30 46-3 Rice, Stanley A.*, Erica A. Corbett, and Diana L. Bannister. Southeastern Oklahoma State University, Durant. Between-year variation of herbivore defense in post oak Quercus stellata.

8:45 46-4 Niesenbaum, Richard A.* and Emily Kluger. Muhlenberg College, Allentown, PA. Variation in rates of herbivory in Lindera benzoin: The role of light, chemistry, and other factors.

9:00 46-5 Emry, D. Jason. University of Kansas. Seedling establishment of Helianthus petiolaris: Integrating the effects of landscape position and local disturbance.

9:15 46-6 Mannouris, Costas* and Diane L. Byers. Illinois State University, Normal. The impact of fragmentation on the competitive ability of a native prairie plant species, Chamaecrista fasiculata.

9:30 46-7 Bell, Timothy J.^1,2* and Marlin Bowles². ¹Chicago State University, Chicago, IL; ²The Morton Arboretum, Lisle, IL. Elasticity analysis of Pitcher's thistle (Cirsium pitcheri) and Mead's milkweed (Asclepias meadii) restorations.

9:45 Break

Presiding: Richard A Niesenbaum, Biology Department, Muhlenberg College, Allentown, PA, 18104-5586. Tele: (484) 664-3258, E-mail: niesenba@muhlenberg.edu.

10:00 46-8 Arii, Ken and Martin J. Lechowicz*. McGill University, Montreal, Quebec, Canada. The sapling ecology of beech-maple codominance in an old-growth forest.

10:15 46-9 Rooney, Tom*, Shannon Wiegmann, and Don Waller. University of Wisconsin, Madison. Fifty years of extinction, colonization, and turnover in northern hardwood herb communities.

10:30 46-10 Sauer, S. L.¹*, R. C. Anderson¹, R. Swigart¹, J. Fralish², and A Carver². ¹Illinois State University, Normal; ²Southern Illinois University, Carbondale. Modifying distance methods to estimate historical tree density from General Land Office survey records.

10:45 46-11 Kershanskaya, Olga¹* and Hamlyn Jones². ¹Institute of Plant Physiology, Genetics and Bioengineering, Almaty, Kazakhstan; ²University of Dundee, UK. Natural and agro-ecosystems management and global climate change in Central Asia.

11:00 46-12 Landis, Frank*, Thomas Givnish, and Andrea Gargas. University of Wisconsin, Madison. Arbuscular mycorrhizal fungi and understory plant diversity along light gradients in Wisconsin oak savannas.

11:15 46-13 Scribailo, Robin W.* and Mitchell S. Alix. Purdue University, North Central, Westville, IN. New and noteworthy aquatic plant species records from Indiana.

11:30 46-14 Scribailo, Robin W. Purdue University, North Central, Westville, IN. Ecology of the globally rare charophyte Chara brittonii T. F. Allen ex Robinson.

11:45 46-15 STUDLAR, SUSAN MOYLE. West Virginia University, Morgantown. Moss harvest in West Virginia: Target species and incidental take.

Organized by: SUSANNE S. RENNER, Department of Biology, University of Missouri-St. Louis, St. Louis, MO 63121. Tele: (314) 516-6272, E-mail: renner@umsl.edu ; and THOMAS J. GIVNISH. Department of Botany, University of Wisconsin, Madison, WI 53706. Tele: (608) 262-5718, E-mail: givnish@facstaff.wisc.edu .

Presiding: THOMAS J. GIVNISH. University of Wisconsin, Madison.

8:20 47-1 GIVNISH, THOMAS. University of Wisconsin, Madison. Opening remarks.

8:30 47-2 MAGALLON, SUSANA A. Universidad Nacional AutÛnoma de MÈxico. Phylogenies, molecules, clocks, the fossil record, and their role in inferring rates of evolution and timing of lineage divergence.

9:00 47-3 OLSON, MARK E.¹* AND BARBARA A. SCHAAL². ¹Universidad Nacional AutÛnoma de MÈxico; ²Washington University, St. Louis, MO. Paleotropical Moringaceae and neotropical Caricaceae: Vicariance or dispersal?

9:30 47-4 BALLARD, HARVEY E.¹*, MIN FENG¹, AND JEROME K. MUNZINGER². ¹Ohio University, Athens; ²Museum National d'Histoire Naturelle, Paris, France. Biogeographic patterns and trans-oceanic dispersal in the Violaceae.

10:00 BREAK

10:15 47-5 KRON, KATHLEEN, Wake Forest University, Winston Salem, NC. The distribution and diversification of tropical Vaccinium (blueberries) and Gaultheria (wintergreen).

10:45 47-6 DAVIS, CHARLES C.¹*, CHARLES D. BELL², SARAH MATHEWS³, AND MICHAEL J. DONOGHUE². ¹Harvard University, Cambridge, MA; ²Yale University, New Haven, CT; ³University of Missouri, Columbia. Laurasian migration explains Gondwanan disjunctions: Evidence from Malpighiaceae.

11:15 47-7 GIVNISH, THOMAS¹*, TIMOTHY EVANS², KENDRA MILLAM¹, PAUL BERRY¹, JOCELYN HALL¹, and KENNETH SYTSMA¹. ¹University of Wisconsin, Madison; ²Hope College, Holland, MI. South American-African disjunctions in Rapateaceae and Bromeliaceae.

Presiding: JUN WEN, Department of Botany, Field Museum of Natural History, Chicago, IL 60605. Tele: (312) 665-7853, E-mail: wen@fieldmuseum.org .

8:30 48-1 CHANDLER, GREGORY T.* and GREGORY M. PLUNKETT. Virginia Commonwealth University, Richmond. Recent advances in the resolution of intra-ordinal affinities in the Apiales: evidence from 26S rDNA.

8:45 48-2 MITCHELL, ANTHONY* and JUN WEN. Field Museum of Natural History, Chicago, IL. Phylogeny of the Asian core Araliaceae clade based on Granule-Bound Starch Synthase I (GBSSI) sequence data.

9:00 48-3 LEE, CHUNGHEE* and JUN WEN. Field Museum of Natural History, Chicago, IL. Phylogeny and biogeography of the Asian clade of the core Araliaceae: Insights from the nuclear ribosomal and chloroplast DNA data.

9:15 48-4 WEN, JUN* and CHUNGHEE LEE. Field Museum of Natural History, Chicago, IL. Evolutionary diversifications of the Aralia/Panax clade (Araliaceae): A synthesis.

9:30 48-5 VU, NINH V.1*, GREGORY M. PLUNKETT2, and PORTER P. II LOWRY3. 1Dept. of Forest Resources, Moscow, ID; 2 Virginia Commonwealth University, Richmond; 3Missouri Botanical Garden, St. Louis. Phylogenetic characterization of Polyscias (Araliaceae) and its close relatives in the western Indian Ocean Basin using ITS and trnL-trnF sequences.

9:45 48-6 COSTELLO, ANNEMARIE1,2* and TIMOTHY J. MOTLEY1. 1The New York Botanical Garden, Bronx; 2New York University, New York. Systematic studies of the Tetraplasandra group (Araliaceae).

10:00 BREAK

10:15 48-7 PLUNKETT, GREGORY M.1*, PORTER P. LOWRY II2, and DAVID G. FRODIN3. 1Virginia Commonwealth University, Richmond; 2Missouri Botanical Garden, St. Louis; 3Royal Botanic Gardens, Kew, Richmond, UK. Molecular data suggest that Schefflera (Araliaceae) is polyphyletic: Morphological, biogeographic, and taxonomic implications.

10:30 48-8 MITCHELL, ANTHONY* and JUN WEN. The Field Museum, Chicago, IL. Phylogeny and biogeography of Brassaiopsis (Araliaceae), a morphologically diverse genus.

10:45 48-9 DONOGHUE, MICHAEL J.* and CHARLES D. BELL. Yale University, New Haven, CT. Character evolution in Dipsacales.

11:00 48-10 WINKWORTH, RICHARD C.* and MICHAEL J. DONOGHUE. Yale University, New Haven, CT. Viburnum phylogeny based on granule-bound starch synthase genes.

11:15 48-11 BELL, CHARLES D.* and MICHAEL J. DONOGHUE. Yale University, New Haven, CT. Phylogeny and biogeography of Valerianaceae (Dipsacales), with special reference to the South American species.

Presiding: KAIUS HELENURM, Department of Biology, University of South Dakota, Vermillion, SD 57069. Tel: (605) 677-6174, E-mail: helenurm@usd.edu .

8:30 49-1 NOVAK, STEPHEN J.*, DEAN R. MARSH, LYNELL DEINES, and JOSEPH H. RAUSCH. Boise State University, ID. Genetic variation in Taeniatherum caput-medusae (Poaceae): Evidence for multiple introductions.

8:45 49-2 RAUSCH, JOSEPH H.*, STEPHEN J. NOVAK, and JAMES F. SMITH. Boise State University, ID. Genetic variation in Taeniatherum caput-medusae (Poaceae): Analysis of mating system.

9:00 49-3 HELENURM, KAIUS. University of South Dakota, Vermillion. Patterns of genetic diversity in endemic plants of San Clemente Island, CA.

9:15 49-4 HELENURM, KAIUS* and SARAH HELM. University of South Dakota, Vermillion. High levels of genetic differentiation in the endangered insular endemic Sibara filifolia (Brassicaceae).

9:30 49-5 RAMP, JENNIFER M.* and TOM A. RANKER. University of Colorado, Boulder. Conservation genetics of the vernal pool annual Lasthenia conjugans (Asteraceae).

9:45 49-6 MCCREARY, CHERYL S.* and HARVEY E. BALLARD. Ohio University, Athens. Genetic diversity in an Olympic Peninsula endemic plant, Viola flettii.

10:00 BREAK

10:15 49-7 MOORE, RYLENE L.*, JAMES F. SMITH, and STEPHEN J. NOVAK. Boise State University, ID. Environmental heterogeneity and mode of recruitment in Populus tremuloides (Salicaceae).

10:30 49-8 SHARMA, RASHMI^1,2 and RAKESH C. VERMA¹*. ¹Vikram University, Ujjain, India and ²Tulane University Health Sciences Center, New Orleans, LA. Assessment of extent of naturally occurring genetic diversity and cytogenetic studies in Phlox drummondii.

10:45 49-9 SUN, GENLOU. Saint Mary's University, Halifax, Nova Scotia, Canada. Comparative studies of genetic diversity in several Elymus species.

11:00 49-10 BURKE, JOHN M.* and LOREN H. RIESBERG. Indiana University, Bloomington. Genetic analysis of sunflower domestication.

11:15 49-11 HALL, MEGAN C.* and JOHN H. WILLIS. Duke University, Durham, NC. Ecological genetics of life-history evolution in monkey flowers (Mimulus guttatus).

11:30 49-12 FISHMAN, LILA¹* CHERYL L. GONZALES², and JOHN H. WILLIS¹. ¹Duke University, Durham, NC; ²University of Oregon, Eugene. Natural selection on flower size in Mimulus guttatus?

11:45 49-13 MARTIN, NOLAND H.* and JOHN H. WILLIS. Duke University, Durham, NC. Reproductive isolation in Mimulus: The importance of Dobzhansky-Muller and nuclear-cytoplasmic interactions.

12:00 49-14 SWEIGART, ANDREA L.* and JOHN H. WILLIS. Duke University, Durham. Mating system affects patterns of nucleotide diversity in two species of Mimulus.

Presiding: CHARLES YARISH, Department of Ecology and Evolutionary Biology, University of Connecticut, One University Place, Stamford, CT 06901-2315; and ED THERIOT, Integrative Biology, University of Texas, Austin, TX 78712.

8:30 50-1 YARISH, CHARLES. University of Connecticut, Stamford. Opening Remarks

8:45 50-2 FAWLEY, MARVIN W.¹, KAREN P. FAWLEY¹, AND MICHELLE L. DEAN².* ¹North Dakota State University, Fargo; ²Franklin, WI. Assessing the biodiversity of Monoraphidium using 18S rDNA sequences.

9:00 50-3 FAWLEY, MARVIN W.*, KAREN P. FAWLEY, AND MATTHEW J. HOFFMAN. North Dakota State University, Fargo, ND. Diversity of coccoid algae in Minnesota and North Dakota lakes

9:15 50-4 GOERTZEN, LESLIE R.¹* AND EDWARD C. THERIOT². ¹Indiana University, Bloomington IN; ²University of Texas, Austin. Effects of outgroup selection on phylogenetic hypotheses of the heterokont algae.

9:30 50-5 EDGAR, STACY* AND EDWARD THERIOT. University of Texas, Austin. A total evidence approach to inferring the phylogenetic relationships within Aulacoseira (Bacillariophyta).

9:45 DISCUSSION

10:00 BREAK

10:15 50-6 STILLER, JOHN W. *, DEETTE C. REEL, AND JEFFREY C. JOHNSON. East Carolina University, Greenville. The case for a single plastid origin revisited: Convergent evolution in organellar gene content.

10:30 50-7 BACHVAROFF, T. R.¹*, E. M. HERMAN², AND C. F. DELWICHE¹. ¹University of Maryland, College Park; ²USDA/ARS, Beltsville, MD. Dinoflagellate genomics: Results from an EST approach.

10:45 50-8 YOON, HWAN SU*, JEREMIAH DANIEL HACKETT, AND DEBASHISH BHATTACHARYA. University of Iowa, Iowa City. The monophyletic origin of the peridinin-, and fucoxanthin-containing dinoflagellate plastid through tertiary replacement.

11:00 50-9 YOON, HWAN SU¹, JEREMIAH HACKETT¹, GABRIELE PINTO², AND DEBASHISH BHATTACHARYA.¹* ¹University of Iowa, Iowa City; ²Universita Federico II, Napoli, Italy. The single, ancient origin of chromist plastids.

11:15 50-10 MISNER, IAN J., J. CRAIG BAILEY*, AND D. WILSON FRESHWATER. University of North Carolina-Wilmington. Characterization of sufB sequences from non-green photoautotrophs.

11:30 50-11 HARVEY, JULIO B. J. University of California, Santa Cruz. Intraspecific genetic variation in H. irritans, a fungal endosymbiont of marine brown algae on the North American Pacific coast.

11:45 50-12 HACKETT, JEREMIAH D.¹*, LUCIE MARANDA², and DEBASHISH BHATTACHARYA¹. ¹University of Iowa, Iowa City; ²University of Rhode Island, Narragansett. The plastid of Dinophysis (Dinophyceae): Phylogenetic evidence for a permanent replacement.

Presiding: Wilson A. Taylor, Department of Biology, University of Wisconsin-Eau Claire, Eau Claire, WI 54702-4004. Tele: (715) 836-3176, E-mail: taylorwa@uwec.edu.

8:45 51-1 GRAHAM, LINDA E. University of Wisconsin, Madison. Might resistant liverwort gemmae extend the fossil record of land plants?

9:00 51-2 GRAHAM, LINDA E.*, LEE W. WILCOX, and MARTHA E. COOK. University of Wisconsin, Madison, and Illinois State University, Normal. Could the Ordovician-Devonian microfossils Cosmochlaina and Nematothallus be remains of ancient liverworts?

9:15 51-3 TAYLOR, WILSON A. University of Wisconsin-Eau Claire. New information on modern bryophyte and early land plant spore ultrastructure.

9:30 BREAK

9:45 51-4 GENSEL, PATRICIA G.*, MICHELLE E. KOTYK, WILLIAM H. FORBES, and GARY BOONE. University of North Carolina, Chapel Hill; Washburn and Presque Isle, ME. A newly discovered Devonian plant-bearing locality in northern Maine and a new plant found there.

10:00 51-5 PHIPPS, CARLIE J.*, WILLIAM E. STEIN, and MICHAEL BUTCHKO. State Universitiy of New York, Institute of Technology, Utica; State Universitiy of New York, Binghamton. Endomycorrhizae in a Devonian Cladoxylalean from GaspÈ, QuÈbec.

10:15 51-6 BOYCE, C. KEVIN*, ANDREW H. KNOLL, GEORGE D. CODY, MARILYN L. FOGEL, and ROBERT M. HAZEN. Harvard University, Cambridge, MA; Carnegie Geophysical Laboratory, Washington, DC. Microanalysis of elemental, isotopic, and organic chemistry of cellularly preserved fossils.

10:30 BREAK

10:45 51-7 SCHECKLER, STEPHEN E. Virginia Polytechnic Institute & State University, Blacksburg. Asymmetric cambial growth and reaction wood of the Late Devonian progymnosperm Archaeopteris.

11:00 51-8 GENSEL, PATRICIA G.* and KATHLEEN B. PIGG. University of North Carolina, Chapel Hill; Arizona State University, Tempe. Reconstruction of the Lepidodendropsis/Protostigmaria plant from the Mississippian Price Formation of Virginia, USA.

11:15 51-9 CROSS, AUREAL T.* and RALPH E. TAGGART. Michigan State University, East Lansing. A new Mississippian plant deposit in western Michigan.

Organized by: 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 .

Presiding: PAUL ZIMBA: U.S.D.A./A.R.S., Stoneville, MS.

9:00 52-1 ZIMBA, PAUL¹ and ANGELA WULFF². ¹U.S.D.A/A.R.S, Stoneville, MS; ²Goteborg University, Sweden. Introduction.

9:15 52-2 FRANKLIN, LINDA. Smithsonian Environmental Research Center, Edgewater, MD. The ecological significance of mycosporine-like amino acids in algae.

9:30 52-3 SOMMARUGA, RUBEN* and BARBARA TARTAROTTI. University of Innsbruck, Innsbruck, Austria. A note of caution on using absolute methanol concentrations and low temperatures to quantify mycosporine-like amino acids in algae.

9:45 52-4 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).

10:00 BREAK

10:15 52-5 HOYER, KIRSTEN¹*, ULF KARSTEN², and CHRISTIAN WIENCKE¹. ¹Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen, Germany; ²University of Rostock, Rostock, Germany. MAA synthesis and accumulation in polar macroalgae are controlled by abiotic factors.

10:30 52-6 * and . Friedrich-Alexander University, Erlangen, Germany. Photoprotective compounds in rice-field cyanobacteria.

11:00 52-7 * and MONICA APPELGREN. Goteborg University, Sweden. Mycosporine-like amino acids in harmful marine microalgae.

11:15 52-8 * and . Universite du Quebec a Rimouski, Canada. UV-acclimation of cultured phytoplankton exposed to natural and enhanced UVB radiation and methodological aspects of MAA quantification.

11:45 52-9 ¹* and STEVE BOUE². ¹U.S.D.A./A.R.S., Stoneville, MS; ²U.S.D.A./A.R.S., New Orleans, LA. Mycosporine-like amino acid intercalibration effort using replicate samples.

Presiding: KARL J. NIKLAS, Department of Plant Biology, Cornell University, Ithaca NY 14853. Tele: (607) 255-8727, E-mail: kjn2@cornell.edu.

Presiding: LUC BROUILLET, IRBV, Jardin botanique de Montréal, 4101, rue Sherbrooke est, MontrÈal,QC H1X 2B2, Canada. Tele: (514) 872-8490

Presiding: JAMES TRAQUAIR, Agriculture and Agri-Food Canada, Research Centre, 1391 Sanford St., London, ON N5V 4T3, Canada. Tele: (519) 457-1470

Organized by: LARRY PETERSON, Department of Botany, University of Guelph, Guelph, Ontario N1G 2W1, Canada. Tele (519) 824-4120, E-mail: peterso@uoguelph.ca ; JACK FISHER, Fairchild Tropical Garden, 11935 Old Cutler Rd, Miami, FL 33156. Tele: (305) 665-2844, E-mail: jfisher@fairchildgarden.org ; and DARLENE SOUTHWORTH, Department of Biology, Southern Oregon University, Ashland, OR 97520. Tele (541) 552-6865, E-mail: southworth@sou.edu .

Presiding: DARLENE SOUTHWORTH, Southern Oregon University, Ashland.

1:00 53-1 SOUTHWORTH, DARLENE. Southern Oregon University, Ashland. Biocomplexity in mycorrhizae.

1:15 53-2 PETERSON, R. LARRY. University of Guelph, Ontario, Canada. Cytological characterization of Arum and Paris-type arbuscular mycorrhizas.

1:45 53-3 MASSICOTTE, HUGUES B. University of Northern British Columbia, Prince George, BC, Canada. Re-examining the structural differences between typical ectomycorrhiza and monotropoid and pyroloid symbioses.

2:15 53-4 ZELMER, CARLA D. University of Manitoba, Winnipeg, Canada. Orchid mycorrhizas – learning from the `exceptions.'

2:45 53-5 LIU, JINYUAN¹*, GABRIELLA ENDRE², JENNIFER CHO³, CHRISTOPHER D. TOWN³, KATHRYN A. VANDENBOSCH², and MARIA J HARRISON¹. ¹The Samuel Roberts Noble Foundation, OK; ²University of Minnesota, St. Paul; ³The Institute for Genomic Research, MD. Profiling of genes expressed in Medicago truncatula / Glomus versiforme arbuscular mycorrhizal roots.

3:00 BREAK

3:30 53-6 EGERTON-WARBURTON, LOUISE M.¹*, J. IGNACIO QUEREJETA², and MICHAEL F. ALLEN². ¹Chicago Botanic Garden, Glencoe, IL; ²University of California, Riverside. Water transfer between plants and their mycorrhizal mutualists sustains plant nutrient acquisition in dry soils.

4:00 53-7 DURALL, DANIEL M.* and MELANIE D. JONES. Okanagan University College, Kelowna, BC, Canada. Morphological, molecular and isotopic tracer evidence for ectomycorrhizal fungal networks linking multiple plants in the field.

4:15 53-8 AVIS, PETER G.*, D. J. MCLAUGHLIN, I. CHARVAT, and P. REICH. University of Minnesota, St. Paul. The direct effect of nitrogen as a mechanism for change in ectomycorrhizal fungal communities.

4:30 53-9 DICKIE, IAN A.*, STEFAN A. SCHNITZER, PETER B. REICH, and SARAH E. HOBBIE. University of Minnesota, St. Paul. A horizontally transmitted symbiosis in a patchy world: Mycorrhizal infection of oak seedlings in old fields and savanna openings.

4:45 53-10 FISHER, JACK B. and K. JAYACHANDRAN. Fairchild Tropical Garden, Miami. Arbuscular mycorrhizae and their role in plant restoration in subtropical Florida.

Presiding: Suzanne Koptur, Florida International University, Miami, FL. Tele: (305) 348-3103, E-mail: kopturs@fiu.edu.

1:00 54-1 Badarau, Alexandru - Sabin*, Mihai Constantinescu, Stefan Dezsi, and Florin Pendea. Babesh - Bolyai University, Cluj-Napoca, Romania. Biogeography and degradation of the grasslands dominated by Stipa sect. Stipa species in the Transylvanian forest - steppe. Consequences upon the evolution of the regional landscape.

1:15 54-2 Pai, Aswini* and Brian C. McCarthy. Ohio University, Athens. Edaphic factors influencing rhizome biomass of Acorus calamus L. in southeastern Ohio.

1:30 54-3 Liu, Hong¹*, Steve G. Platt², and Chris K. Borg¹. ¹Florida International University, Miami; ²Wildlife Conservation Society, Bronx, NY. Seed dispersal by the eastern box turtle (Terrapene carolina) in subtropical pine rockland of the Lower Florida Keys.

1:45 54-4 Mettler, Paige A.¹* and Marian Smith². ¹Southern Illinois University, Carbondale; ²Southern Illinois University, Edwardsville. An assessment of the ecological requirements of Schoenoplectus hallii (Hall's bulrush), Cyperaceae.

2:00 54-5 Ekechukwu, Kenneth O* and Tarun K Mal. Cleveland State University, OH. Assessment of plant biodiversity at Cleveland metroparks: Preliminary analysis.

2:15 54-6 Sudler, K. Nicole. University of Kentucky, Lexington. The effect of competition and physiological integration on fitness-related traits in Viola blanda.

2:30 54-7 Otfinowski, R.* and M.A. Maun. University of Western Ontario, London, Canada. Gradients, patches, and microhabitats: Sand dune heterogeneity according to Pitcher's thistle (Cirsium pitcheri), an endangered species of the Great Lakes.

2:45 DISCUSSION

3:00 BREAK

Presiding: Timothy Bell, Chicago State University, Department of Biological Sciences, 9501 South King Drive, Chicago, IL, 60628. Tele: (773) 995-2442, E-mail: tj-bell1@csu.edu.

3:15 54-8 Dech, Jeffery P.* and M. Anwar Maun. University of Western Ontario, Canada. Zonation in plant communities along a burial gradient in an ecotone between coastal dunes and oak savanna.

3:30 54-9 Claerbout, Ann E¹*, Janice M. Coons¹, Henry R. Owen², and Brent L. Todd². ¹University of Illinois, Urbana; ²Eastern Illinois University, Charleston. Floral biology of Lesquerella ludoviciana, an endangered plant in Illinois.

3:45 54-10 Mahan, Leah M. Santa Rosa, CA. Environmental factors affecting the survival of the spikeweed Centromadia fitchii (Asteraceae) in the Northern Sacramento Valley of California.

4:00 54-11 Robertson, Susan J.* and Hugues B. Massicotte. University of Northern British Columbia, Prince George, Canada. Ectomycorrhizal fungi associated with naturally regenerating black spruce (Picea mariana) seedlings in wetland and upland forests in central British Columbia.

4:15 54-12 Brock, Marcus T. University of Missouri, Columbia. The threat of genetic assimilation to the integrity of a native plant species, Taraxacum ceratophorum (Asteraceae).

4:30 DISCUSSION

Presiding: CHRISTOPHER P. RANDLE, Department of Evolution, Ecology and Organismal Biology, The Ohio State University, Columbus, OH 43210. Tele: (614) 292-0501, E-mail: randle.0@osu.edu .

1:00 55-1 ALBACH, DIRK C.1,2*, MANFRED A. FISCHER1, JOHANN GREILHUBER1, and MARK W. CHASE2. 1University of Vienna, Austria; 2Royal Botanic Gardens, Kew, Richmond, UK. VERONICA: Various Evolutionary Reductions Of Numerous Independent Character Assemblages.

1:15 55-2 OYAMA, RYAN K.1*, KRISTINA N. JONES1, and DAVID A. BAUM2. 1Harvard University Herbaria, Cambridge MA; 2University of Wisconsin, Madison. Flower power: Pollination and speciation in native Californian Snapdragons (Antirrhinum).

1:30 55-3 WOLFE, ANDREA D.*, NIDIA ARGUEDAS, JEFFERY J. MORAWETZ, and JOSE DIAZ. The Ohio State University, Columbus. Molecular phylogenetics of Penstemon (Scrophulariaceae s.l.).

1:45 55-4 ARCHIBALD, JENNY K.1*, ANDREA D. WOLFE1, and MARK E. MORT2. 1The Ohio State University, Columbus; 2University of Kansas, Lawrence. Preliminary insights into the phylogenetics of Zaluzianskya (Scrophulariaceae, Tribe Manuleae) inferred from multiple DNA data sets.

2:00 55-5 TANK, DAVID C.* and RICHARD G. OLMSTEAD. University of Washington, Seattle. Phylogenetic analysis of subtribe Castillejinae (tribe Rhinantheae: Orobanchaceae).

2:15 55-6 SCHNEEWEISS, GERALD M.1*, ALISON E. L. COLWELL2, JEONG-MI PARK1, and TOD F. STUESSY1. 1University of Vienna, Austria; 2U.S. Geological Survey, Seattle, WA. Phylogeny of holoparasitic Orobanche (Orobanchaceae) inferred from ITS sequences.

2:30 55-7 RANDLE, CHRISTOPHER P.* and ANDREA D. WOLFE. The Ohio State University, Columbus. The evolution of rbcL in parasitic sister lineages Harveya Hook. and Hyobanche L.(Orobanchaceae): Cryptic hemiparasitism or multiple origins of holoparasitism in sister taxa?

2:45 55-8 WOLFE, ANDREA D.*, CHRISTOPHER P. RANDLE, and NIDIA ARGUEDAS. The Ohio State University, Columbus. Assessing species boundaries in Hyobanche L. (Orobanchaceae).

Presiding: LOWELL E. URBATSCH, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803. Tele: (225) 578-8555, E-mail: leu@lsu.edu .

1:00 56-1 BATTERMAN, MCLYNDA R. W.* and THOMAS G. LAMMERS. University of Wisconsin-Oshkosh. The systematic implications of trichome morpholgy in Centropogon (Campanulaceae: Lobelioideae).

1:15 56-2 EDDIE, W. M.*, R. C. HABERLE, and R. K. JANSEN. University of Texas, Austin. The phylogeny of the Campanulaceae inferred from DNA sequences of the chloroplast gene matK.

1:30 56-3 HOWARTH, DIANELLA G.1* and DAVID A. BAUM2. 1Harvard University Cambridge, MA; 2University of Wisconsin, Madison. Comparing three variable nuclear intron regions and nrDNA ITS to determine the phylogenetic history and a possible hybrid origin in a closely related Hawaiian clade in Scaevola (Goodeniaceae).

1:45 56-4 BAYER, RANDALL J.* and EDWARD W. CROSS. CSIRO, Canberra, Australia. The tribal placement of several enigmatic genera of Australian Asteraceae based on molecular and morphological data.

2:00 56-5 COOK, RACHEL E.* and JOHN C. SEMPLE. University of Waterloo, Ontario, Canada. A biosystematic study of Solidago subsect. Glomeruliflorae Torr. & Gray (Asteraceae:Astereae) in eastern North America.

2:15 56-6 URBATSCH, LOWELL E.*, ROLAND ROBERTS, and VESNA KARAMAN. Louisiana State University, Baton Rouge. Are the genera Stenotus and Tonestus (Asteraceae, Astereae) polyphyletic?

2:30 56-7 KELCH, DEAN G.* and BRUCE G. BALDWIN. University of California, Berkeley. Evidence for recent radiation of New World Cirsium based on comparison of rDNA transcribed spacer variation in the New World Clade and in Canada thistle, Cirsium arvense.

2:45 56-8 MAHONEY, ALISON M.1* and ROBERT R. KOWAL2. 1Minnesota State University, Mankato; 2University of Wisconsin, Madison. Races of the polymorphic Packera paupercula complex (Asteraceae: Senecioneae) in the upper Midwest and southeastern U.S.

3:00 BREAK

3:15 56-9 KIM, SEUNG-CHUL1*, KAREN LUNDY1, and ARNOLDO SANTOS-GUERRA2. 1University of California, Riverside; 2Jardin de Aclimatacion de La Orotava, Tenerife, Canary Islands, Spain. Phylogenetic relationships in the woody Sonchus alliance (Asteraceae) based on chloroplast DNA noncoding sequences.

3:30 56-10 BATES, PAUL L.1*, LINDA E. WATSON2, and JAMES R. ESTES1. 1University of Nebraska, Lincoln; 2Miami University, Oxford, OH. Molecular systematics of the Artemisia ludoviciana complex (Asteraceae: Tribe Anthemideae) based on the ITS and ETS regions of rDNA.

3:45 56-11 MARRIAGE, TARA N.1*, ELIZABETH J. ESSELMAN1, and JENNIFER L. WINDUS2. 1Southern Illinois University Edwardsville; 2Ohio Department of Natural Resources, Columbus. Examination of ISSR marker diversity within and among populations of Hymenoxys herbacea (E. L. Greene) Cusick = H. acaulis var. glabra (Lakeside daisy).

4:00 56-12 OLSON, TEIKA E.* and JEANNETTE WHITTON. Vancouver BC, Canada. The role of chromosome rearrangements in the differentiation of the California tarweeds.

4:15 56-13 WEISS, HANNA*, TOD F. STUESSY1, KARIN TREMETSBERGER1, CHRISTIANE KOENIG1, SONJA SILJAK-YAKOVLEV2, CARLOS M. BAEZA3, and JOHN PARKER4. 1University of Vienna, Austria; 2Universite de Paris, France; 3Universidad de Concepcion, Chile; 4Cambridge University, UK. Systematic and evolutionary implications of karyotypes of species of Hypochaeris (Asteraceae) from South America.

4:30 DISCUSSION: DEEP ACHENE

Presiding: SCOTT A. MORI, Institute for Systematic Botany, The New York Botanical Garden, Bronx, NY 10458-5126. Tele: (718) 817-8629, E-mail: smori@nybg.org .

1:00 57-1 HANSEN, CURTIS J.*, CYNTHIA M. MORTON, and GLENDA GIL. Auburn University, AL. Vascular plants of Alabama from the John D. Freeman Herbarium (AUA) and the University of Alabama Herbaria (ALU/UNA).

1:15 57-2 MARTINE, CHRISTOPHER T. University of Connecticut, Storrs. Shrubs and vines of New Jersey and the mid-Atlantic states: A field identification and natural history guide.

1:30 57-3 BARKLEY, THEODORE M. Botanical Research Institute of Texas, Fort Worth. The Asteraceae in the Flora of North America (FNA): Accounting for new knowledge.

1:45 57-4 COTA-SANCHEZ, J. HUGO*, RANDY OLSON, and JUDY HARALDSON. University of Saskatchewan, Saskatoon, Canada. Saskatchewan's rare plants: An overview.

2:00 57-5 PETERSON, PAUL M. Smithsonian Institution, Washington, DC. A summary of the New World Chloridoideae (Poaceae).

2:15 57-6 MORI, SCOTT A.* and CAROL A. GRACIE. The New York Botanical Garden, Bronx. Motivation for a flora of central French Guiana.

2:30 57-7 MOTLEY, TIMOTHY J.1*, ROLAND J. FENSTEMACHER2, JEAN-YVES MEYER3, STEVEN P. PERLMAN4, and KENNETH R. WOOD4. 1The New York Botanical Garden, Bronx; 2Hawaiian Cultural Garden, Honolulu; 3DÈlÈgation ý la Recherche, Papeete, Tahitie; 4National Tropical Botanical Garden, Lawaii, HI. Floristics and biogeographic affinities of Rapa Iti, Austral Islands, French Polynesia.

2:45 57-8 SNOW, NEIL. University of Northern Colorado, Greeley. Systematics of Rhodamnia Jack (Myrtaceae).

3:00 BREAK

3:15 57-9 MACKLIN, JAMES A. The Academy of Natural Sciences, Philadelphia, PA. The influence of Charles Sprague Sargent on Crataegus taxonomy in the early 20th Century.

3:30 57-10 ALVAREZ-FUENTES, ORLANDO¹*, L. ALAN PRATHER¹, MARK H. MAYFIELD², and CAROLYN J. FERGUSON2. ¹Michigan State University, East Lansing; ²Kansas State University, Manhattan. Temporal collecting patterns: At what rate are U.S. herbaria accumulating specimens?

3:45 57-11 DICKINSON, RICHARD B.1,2* and TIMOTHY A. DICKINSON2. 1University of Toronto, Canada; 2Royal Ontario Museum, Toronto, Canada. Web-based interactive identification ssing Pollyclave 2.

4:00 57-12 KOBLITZ, BONNIE* and NEIL SNOW. University of Northern Colorado, Greeley. An interactive key to the vascular plants of the Laramie Foothills region (Colorado).

4:15 57-13 HEIDORN, P. BRYAN*, HONG CUI, BEI YU, JINGBO WU, and ZHANG HONG. University of Illinois, Champaign. Taxonomic description creation, search and display in XML.

Presiding: MATTHEW S. OLSON, Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska at Fairbanks, Fairbanks, AK 99775-7000. Tele: (907) 474-2766, E-mail: matt.olson@uaf.edu

1:00 58-1 OLSON, MATTHEW S.¹* and DAVID E. MCCAULEY². ¹University of Alaska at Fairbanks; ²Vanderbilt University, Nashville, TN. Association among gender, cytoplasmic markers, and components of fitness in Silene vulgaris a gynodioecious plant.

1:15 58-2 ALLER, D. M.¹*, A. BERSCH¹, and J. DOLE². ¹University of Wisconsin, Madison; ²University of Tennessee, Knoxville. Does inbreeding purge the genetic load? Experiments with Brassica rapa.

1:30 58-3 UNGERER, M. C.*, T. F. C. MACKAY, and M. D. PURUGGANAN. North Carolina State University, Raleigh. Genotype-environment interactions for inflorescence development and variable effect QTLs in Arabidopsis thaliana.

1:45 58-4 HILEMAN, LENA C.¹*, ELENA M. KRAMER¹, and DAVID M. BAUM². ¹ Harvard University, Cambridge, MA; ²University of Wisconsin, Madison. Floral symmetry genes are implicated in the developmental evolution of stamen number in the Antirrhineae (Veronicaceae).

2:00 58-5 CHUNG, MYONG G.I.¹* and REID G. PALMER². ¹Gyeongsang National University, Jinju, Korea; ²Iowa State University, Ames. Evaluation of allozyme diversity in the USDA soybean gernplasm collections from China.

2:15 58-6 RAUSCHER, JASON T.¹; JEFF J. DOYLE¹*, JANE L. DOYLE¹, and TONY (A. H. D.) BROWN². ¹Cornell University, Ithaca, NY, ²CSIRO Plant Industry, Canberra ACT, Australia. Multiple origins and cryptic polyploids speciation in the Glycine tomentella polyploid complex revealed by nuclear and chloroplast sequence data.

2:30 58-7 HABERLE, ROSEMARIE C.¹*, STACIA K. WYMAN¹, WILLIAM M. EDDIE¹, JEFFREY L. BOORE², ROBERT K. JANSEN¹. ¹University of Texas, Austin, ²DOE Joint Genome Institute, Walnut Creek, CA. Evolutionary implications of the complete sequence of the Trachelium caeruleum (Campanulaceae) chloroplast genome.

2:45 BREAK

3:00 58-8 WEISS, HANNA¹*, HARRY SCHERTHAN², CHANG GEE JANG¹, MARTIN PFOSSER¹, and DIETER SCHWEIZER¹. ¹University of Vienna, Austria; ²Max-Planck-Institute for Molecular Genetics, Berlin,Germany. Othocallis siberica (Hyacinthaceae) - a plant with vertebrate-type telomeric sequences.

3:15 58-9 GOERTZEN, LESLIE R.*, and JEFFREY D. PALMER. Indiana University, Bloomington. Fine-scale surveys of mitochondrial gene loss in angiosperms.

3:30 58-10 DEPAMPHILIS, CLAUDE W.¹*, LENA LANDHERR¹, TODD BARKMAN^1,2, JOEL MCNEAL¹, and NED YOUNG³. ¹Pennsylvannia State University, University Park; ²Western Michigan University, Kalamazoo; ³Trinity University, San Antonio, TX. Riveting reverses editing in plant mitochondrial sequences.

3:45 58-11 SIMON, DAWN¹*, DAVID FEWER^2,3, THOMAS FRIEDL², and DEBASHISH BHATTACHARYA¹. ¹University of Iowa, Iowa City; ²University of Gottingen, Germany; ³University of Helsinki, Finland. Evolution of self-splicing ability of the tRNA-Leu group I intron.

4:00 58-12 BHATTACHARYA, DEBASHISH ¹*, DAWN SIMON¹, THOMAS FRIEDL², and GERT HELMS¹. ¹University of Iowa, Iowa City; ²University of Gottingen, Germany. Vertical evolution and intragenic spread of lichen-fungal group I introns.

4:15 58-13 SPEER, WILLIAM D.* and PAUL G. WOLF. Utah State University, Logan. Analysis of basal vascular plant phylogeny using chloroplast genome sequences.

Presiding: Sharon D. Klavins, Department of Ecology and Evolutionary Biology, Haworth Hall, University of Kansas, Lawrence, KS 66045. Tele: (785) 864-4255, E-mail: sklavins@ku.edu

1:00 59-1 KNAUS, M. JANE. Southwest Texas State University, San Marcos. Plant biostratigraphy, phytogeography, comparative floristics, and an artifactual taxonomy.

1:15 59-2 MAPES, GENE* and GAR ROTHWELL. Ohio University, Athens. A distinctive long needled walchian conifer from the uppermost Pennsylvanian Hamilton Quarry, Kansas.

1:30 59-3 AXSMITH, BRIAN* and MICHAEL KRINGS. University of South Alabama, Mobile; University of Kansas, Lawrence. An alternative reconstruction of the cheirolepidiaceous conifer Pseudofrenelopsis parceramosa.

1:45 BREAK

2:00 59-4 KLAVINS, SHARON D.*, THOMAS N. TAYLOR, and EDITH L. TAYLOR. University of Kansas, Lawrence. Earliest record of matoniaceous ferns from the Middle Triassic of Antarctica.

2:15 59-5 JI, QIANG, HONGQI LI*, L. MICHELLE BOWE, YUSHENG LIU, and DAVID WINSHIP TAYLOR. Chinese Academy of Geological Sciences, Beijing, P.R. China; Frostburg State University, Frostburg, MD; The Field Museum, Chicago,IL; Indiana University Southeast, New Albany. The earliest fossil herbaceous flowering plant from the Yixian Formation, Sihetun, Liaoning, northeastern China.

2:30 59-6 DILCHER, D. L.*, G.E. SUN, K. C. NIXON, and QIANG JI. Florida Museum of Natural History, Gainesville; Jilin University, Changchun, China; Cornell University, Ithaca, NY; Geological Institute of Chinese Academy of Geosciences, Beijing, China. A new basal angiosperm family.

2:45 BREAK

3:00 Informal Presentations

Presiding: CHARLES YARISH, Department of Ecology and Evolutionary Biology, University of Connecticut, One University Place, Stamford, CT 06901-2315; and ED THERIOT, Integrative Biology, University of Texas, Austin, TX, 78712.

1:00 60-1 LIN, SHOWE-MEI¹*, SUZANNE FREDERICQ², AND MAX H. HOMMERSAND³. ¹National Museum of Marine Biology & Aquarium, Taiwan; ²University of Louisiana at Lafayette; ³University of North Carolina at Chapel Hill. Apoglosseae trib. nov. (Delesseriaceae, Rhodophyta) based on two molecular datasets and cystocarp development.

1:15 60-2 CHO, T.O.¹*, S. FREDERICQ¹, S.N. MURRAY², AND S.M. BOO³. ¹Universtiy of Louisiana, Lafayette; ²California State University; ³Chungnam National University, Korea. New systematic insights in the Ceramium sinicola complex: Resurrection of C. interruptum S. & G. (Ceramiaceae, Rhodophyta).

1:30 60-3 FREDERICQ, S.¹*, J.M. LOPEZ-BAUTISTA¹, AND R.L. MOE². ¹University of Louisiana at Lafayette; ²University of California, Berkeley. New insights in the systematics of the Phyllophoraceae (Gigartinales, Rhodophyta).

1:45 60-4 LOPEZ-BAUTISTA, J. M.¹*, S. FREDERICQ¹, S. C. LINDSTROM², W. A. NELSON³, AND M. E. RAMIREZ⁴. ¹University of Louisiana at Lafayette; ²University of British Columbia, Vancouver, BC, Canada; ³Museum of New Zealand Te Papa Tongarewa, Wellington, New Zealand; ⁴Museo Nacional de Historia Natural, Santiago, Chile. Characterization and position of the genus Stenogramme in the Phyllophoraceae (Gigartinales, Rhodophyta).

2:00 60-5 KRIENITZ, LOTHAR¹*, MATTHIAS WOLF¹, EBERHARD HEGEWALD², AND DOMINIK HEPPERLE^1,3. ¹Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Stechlin-Neuglobsow, Germany; ²Institute of Chemistry and Dynamics of the Geosphere, Research, Juelich, Germany; ³University of Goettingen, Goettingen, Germany. Systematics of coccoid green algae: Morphology versus 18S rRNA gene phylogeny.

2:15 60-6 MCMANUS, HILARY A.* AND LOUISE A. LEWIS. University of Connecticut, Storrs. Phylogenetic relationships among Pediastrum spp. and Hydrodictyon spp.

2:30 60-7 PR÷SCHOLD, THOMAS^1,2*, BARBARA SUREK¹, BIRGER MARIN¹, AND MICHAEL MELKONIAN¹. ¹University of Cologne, K–ln, Germany; ²Brown University, Providence RI. Protist origin of the Ulvophyceae (Chlorophyta) revealed by SSU rDNA analyses of marine coccoid green algae.

2:45 60-8 WATANABE, S.¹*, K. MITUI², T. NAKAYAMA², AND I. INOUYE². ¹Toyama University, Toyama, Japan; ²University of Tsukuba, Ibaraki, Japan. Phylogenetic analyses of the species of Chlorosarcinopsis and Neochlorosarcina (Chlorophyceae).

3:00 60-9 LEWANDOWSKI, JEFFREY D.* AND CHARLES F. DELWICHE. University of Maryland, College Park. Actin phylogeny in the Charophyta.

3:15 60-10 GABEL, JENNIFER*, J. CRAIG BAILEY, and D. WILSON FRESHWATER. University of North Carolina, Wilmington. Phylogenetic analyses of nuclear 18S rRNA gene sequences indicate that the Mastophoroideae (Corallinales, Rhodophyta) is polyphyletic taxon.

3:30 60-11 LEE, JUNGHO* and JAMES R. MANHART. Texas A&M University, College Station. The transition from algae to embryophytes: Chloroplast phylogenomic evidence II.

Organized by: SUSANNE S. RENNER, Department of Biology, University of Missouri-St. Louis, St. Louis, MO 63121. Tele: (314) 516-6272, E-mail: renner@umsl.edu ; and THOMAS J. GIVNISH. Department of Botany, University of Wisconsin, Madison, WI 53706. Tele: (608) 262-5718, E-mail: givnish@facstaff.wisc.edu .

Presiding: SUSANNE S. RENNER, University of Missouri-St Louis.

1:15 61-1 SCHWARZBACH, ANDREA E.¹* AND ROBERT E. RICKLEFS². ¹Kent State University, Kent, OH; ²University of Missouri, St. Louis. Tropical intercontinental disjunctions in Rhizophoraceae: Vacariance or long distance dispersal?

1:45 61-2 LES, DONALD H.¹*, DANIEL J. CRAWFORD², REBECCA T. KIMBALL³, MICHAEL L. MOODY¹, AND ELIAS LANDOLT⁴. ¹University of Connecticut, Storrs; ²University of Kansas, Lawrence; ³University of Florida, Gainesville; ⁴Geobotanisches Institut ETH, Zurich, Switzerland. Biogeography of cosmopolitan hydrophytes: A molecular appraisal of intercontinental disjunctions.

2:15 61-3 GOTTSCHLING, MARC*, NADJA DIANE, MAXIMILIAN WEIGEND, AND HARTMUT H. HILGER. Freie Universitaet Berlin, Berlin, Germany. Distribution patterns in Cordiaceae, Ehretiaceae, and Heliotropiaceae (Boraginales).

2:45 BREAK

3:00 61-4 SYTSMA, KENNETH J.¹* AND AMY LITT². ¹University of Wisconsin, Madison; ²Yale University, New Haven, CT. Tropical disjunctions in and among the Myrtaceae clade (Myrtaceae, Heteropyxidaceae, Psiloxylaceae, Vochysiaceae): Gondwanan vicariance or dispersal?

3:30 61-5 CONTI, ELENA¹*, TORSTEN ERIKSSON², JUERG SCHOENENBERGER¹, KENNETH J. SYTSMA³, AND DAVID A. BAUM³. ¹University of Zurich, Zurich, Switzerland; ²Royal Swedish Academy of Sciences, Stockholm, Sweden; ³University of Wisconsin, Madison. Molecular evidence for Early Tertiary out-of-India dispersal in Crypteroniaceae (Myrtales).

4:00 61-6 DOYLE, JAMES A.¹*, HERVÈ SAUQUET², TANYA SCHARASCHKIN¹, AND ANNICK LE THOMAS². ¹University of California, Davis; ²MusÈum National d,Histoire Naturelle, Paris, France. Phylogeny, molecular and fossil dating, and biogeographic history of Magnoliales: Contrasts between Annonaceae and Myristicaceae.

4:30 61-7 RENNER, SUSANNE S. University of Missouri-St. Louis, St. Louis. Transatlantic disjunctions in tropical angiosperms in relation to Gondwana break-up and ocean currents at relevant times in the past.

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

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

Presiding: JERI W. HIGGINBOTHAM, Division of Natural Sciences, Transylvania University, Lexington, KY 40408-1797. Tele: (606) 233-8241, Email: jhigginbotham@transy.edu.

Presiding: Suzanne Koptur, Florida International University, Miami, FL. Tele: (305) 348-3103, E-mail: kopturs@fiu.edu.

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 ; and JOE GERRATH, 70 Dumbarton St., N1E 3T6, Canada. Tele: (519) 822-1964

Address of the BSA President-Elect: SCOTT D. RUSSELL, University of Oklahoma, Norman. Sex and the single plant.