Tuesday Morning, August 14, 2001


7:00 AM - 8:30 AM Hyatt, Fiesta 1-2
BREAKFAST: Missouri Botanical Garden (Ticketed Event)

7:00 AM - 8:30 AM Hyatt, Fiesta 3-4
BREAKFAST: Miami University of Ohio (Ticketed Event)

8:00 AM - 12:00 PM ACC, 101-Brazos

CONTRIBUTED PAPERS: ASPT / IOPB / Systematics Section, BSA Asteraceae I

Presiding: VICKI A. FUNK, U. S. National Herbarium, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0166. Tele: 202-357-2560, E-mail: funkv@nmnh.si.edu.

8:00 25-1 DeVore, Melanie L.1*, John J. Skvarla2, Zaiming Zhao3, and Robert K. Jansen3. 1Georgia College & State University, Milledgeville; 2University of Oklahoma, Norman; 3University of Texas, Austin. Comparisons of Tubuliforidites and pollen types within Asteraceae and related families: how do you recognize Asteraceae in the fossil record?

8:15 25-2 Kim, Hyi-Gyung1*, Vicki A. Funk2, Robert K. Jansen3, and Elizabeth A. Zimmer1. 1Smithsonian Institution, Suitland, MD; 2Smithsonian Institution, Washington, DC; 3University of Texas, Austin. Phylogenetic relationships of Mutisieae (Asteraceae) from the Guayana Highland.

8:30 25-3 SamueL, Rosabelle1*, Tod F. Stuessy1, and Carlos M. Baeza2. 1University of Vienna, Austria; 2Universidad de Concepcion, Chile. Molecular phylogeny of Hypochaeris (Asteraceae) and relationships to other genera of Hypochaeridinae.

8:45 25-4 Lee, Joongku*, Bruce G. Baldwin, and L. D. Gottlieb. University of California, Berkeley. A molecular phylogenetic reexamination of the western North American subtribes Stephanomeriinae and Microseridinae (Compositae--Lactuceae).

9:00 25-5 GailinG, Oliver* and Konrad Bachmann. Institute of Plant Genetics and Crop Plant Research, Germany. Evolutionary reduction of inner pollen sacs (microsporangia) within the asteracean genus Microseris: a model system for the evolution of diagnostic characters.

9:15 25-6 Kelch, Dean G.* and Bruce G. Baldwin. University of California, Berkeley. Utility of the External Transcribed Spacer (ETS) in Compositae tribe Cardueae phylogeny reconstruction and rapid evolution of North American thistles (Cirsium species).

9:30 25-7 Funk, VICKI A.* and Hyi-gyung Kim. Smithsonian Institution, Washington DC. An evaluation of the proposed sister group relationships of the tribe Liabeae (Compositae).

9:45 25-8 Kim, Hyi-Gyung1*, Vicki A. Funk2, and Elizabeth A. Zimmer1. 1Smithsonian Institution, Suitland, MD; 2Smithsonian Institution, Washington, DC. Molecular phylogenetics of the Liabeae (Asteraceae-Cichorioideae) based on ITS and ndhF sequences.

10:00 BREAK

10:15 25-9 Bayer, Randall J.*, Edward W. Cross, and Neil H. Bagnall. CSIRO, Australian National Herbarium, Canberra, Australia. A reassessment of tribal affinities of several enigmatic genera of Australian Asteraceae, based on three chloroplast sequences.

10:30 25-10 Wagstaff, Steven J* and Ilse Breitwieser. Landcare Research, Lincoln, New Zealand. Phylogenetic relationships of New Zealand Asteraceae inferred from ITS sequences.

10:45 25-11 Watson, Linda E.1*, Timothy M. Evans2, Matthew M. Unwin1, and Amy B. Korkven. 1Miami University, Oxford, OH; 2Hope College, Holland, MI. Origin and diversification of Tribe Anthemideae (Asteraceae), based on molecular phylogenies of ndhF and ITS.

11:00 25-12 Boerema, David1, Timothy M. Evans1*, and Gregory K. Brown2. 1Hope College, Holland, MI; 2University of Wyoming, Laramie. Phylogenetic relationships in Oönopsis (Asteraceae) based on DNA sequences from three spacer regions.

11:15 25-13 Morgan, David R. Western Washington University, Bellingham. Nuclear rDNA ETS sequence data and the systematics of Machaeranthera (Asteraceae).

11:30 25-14 Roberts, Roland P.* and Lowell E. Urbatsch. Louisiana State University, Baton Rouge. Phylogenetic investigations of the Ericameria/Chrysothamnus complex (Astereae, Asteraceae) based on nuclear ribosomal ITS and ETS sequence data.

11:45 25-15 Whitton, Jeannette*, Stacey Thompson, Katrina Dlugosch, and Linda P. Jennings. The University of British Columbia, Vancouver, Canada. Phylogenetic relationships in the genus Townsendia (Asteraceae: Astereae) based on nuclear ribosomal DNA variation in ITS and ETS regions.

8:00 AM - 12:00 PM ACC, 205-San Miguel

CONTRIBUTED PAPERS: ASPT / IOPB / Systematics Section, BSA Paleoherbs, magnoliids, Ranunculales and Caryophyllales

Presiding: DONALD B. PRATT, Department of Botany, Iowa State University, Ames, IA 50011-1020. Tele: 515-294-4035, E-mail: dbp@iastate.edu.

8:00 26-1 Borsch, Thomas1*, Khidir W. Hilu2, John H. Wiersema3, C. Barre Hellquist4, Surrey W.L. Jacobs5, Volker Wilde6, and Wilhelm Barthlott1. 1Friedrich-Wilhelms-Universität Bonn, Germany; 2Virginia Polytechnic Institute and State University, Blacksburg; 3USDA/ARS, Beltsville, MD; 4Massachusetts College of Liberal Arts, North Adams; 5Royal Botanic Gardens, Sydney, Australia; 6Forschungsinstitut Senckenberg, Frankfurt am Main, Germany. Phylogeny and evolution of Nymphaea: integrating evidence from different genomic regions and from paleobotany.

8:15 26-2 Kim, Sangtae*, ChonG-Wook Park, and Youngbae Suh. Seoul National University, Korea. Phylogeny and evolution of the Magnoliaceae implied by sequences of 10 chloroplast DNA regions.

8:30 26-3 SAUQUET, HERVE1*, ANNICK LE THOMAS1, JAMES A. DOYLE2, KHIDIR W. HILU3, THOMAS BORSCH4, and LARS W. CHATROU5. 1Museum National d'Histoire Naturelle, Paris, France; 2University of California, Davis; 3Virginia Polytechnic Institute and State University, Blacksburg; 4Friedrich-Wilhelms-Universität Bonn, Germany; 5National Herbarium of the Netherlands, Utrecht University branch. Insights into the origin and evolution of Myristicaceae (Magnoliales), based on morphological and molecular data.

8:45 26-4 JANOVEC, JOHN P. The New York Botanical Garden. Monographic studies of Compsoneura, a Neotropical genus of the Myristicaceae.

9:00 26-5 Nickrent, Daniel L.1*, Albert Blarer2, Yin-Long Qiu2,3, Douglas E. Soltis4, and Michael Zanis4. 1Southern Illinois University, Carbondale; 2University of Zürich, Switzerland; 3University of Massachusetts, Amherst; 4Washington State University, Pullman. Paleoherb status of Hydnoraceae supported by multigene analyses.

9:15 26-6 White, Pamela J.1,2* and Dennis W. Stevenson2. 1Cornell University, Ithaca, NY; 2The New York Botanical Garden, Bronx. An emerging analysis of the evolution of fruit and seed features in the Menispermaceae.

9:30 26-7 Schuettpelz, Eric J.* and Sara B. Hoot. University of Wisconsin, Milwaukee. Phylogenetic and biogeographic relationships of Caltha (Ranunculaceae) based on DNA sequence data and morphology.

9:45 26-8 Slomba, Jonathan, M.*, Frederick B. Essig, and James R. Garey. University of South Florida, Tampa. A re-evaluation of the infrageneric classification of Clematis (Ranunculaceae) using chloroplast DNA sequences.

10:00 BREAK

10:15 26-9 Nepokroeff, Molly1, Warren L. Wagner2*, Elizabeth A. Zimmer1, Stephen G. Weller3, Ann K. Sakai3, and Richard K. Rabeler4. 1Smithsonian Institution, Suitland, MD; 2Smithsonian Institution, Washington, DC; 3University of California, Irvine; 4University of Michigan Herbarium, Ann Arbor. Origin of the Hawaiian subfam. Alsinoideae and preliminary relationships in Caryophyllaceae inferred from matK and trnL C-F sequence data.

10:30 26-10 NEPOKROEFF, MOLLY1*, WARREN L. WAGNER2, STEVEN G. WELLER3, PAMELA S. SOLTIS4, ELIZABETH A. ZIMMER1, ANN K. SAKAI3, and DOUGLAS E. SOLTIS4. 1Smithsonian Institution, Suitland, MD; 2Smithsonian Institution, Washington, DC; 3University of California, Irvine; 4University of Florida, Gainesville. Diversification in the endemic Hawaiian subfam. Alsinoideae (Caryophyllaceae): evidence from nrDNA ITS, ETS sequences and morphology.

10:45 26-11 Pratt, Donald B.*, Lynn G. Clark, and Robert S. Wallace. Iowa State University, Ames. A tale of two families: phylogeny of the Chenopodiaceae-Amaranthaceae.

11:00 26-12 Butterworth, Charles A.* and Robert S. Wallace. Iowa State University, Ames. Infrageneric relationships in the genus Pereskia (Cactaceae).

11:15 26-13 Butterworth, Charles A.* and Robert S. Wallace. Iowa State University, Ames. What is the sister-group of the tribe Cacteae? (Cactaceae: Cactoideae).

11:30 26-14 Wallace, Robert S. Iowa State University, Ames. Phylogenetic relationships among North American columnar cacti revisited.

11:45 26-15 Levin, Rachel A.1,2* and Lucinda A. McDade3. 1University of Arizona, Tucson; 2Smithsonian Institution, Suitland, MD; 3Academy of Natural Sciences, Philadelphia, PA. The utility of floral and vegetative fragrance for phylogenetic inference in three genera of Nyctaginaceae.

8:00 AM - 12:00 PM ACC, 103-Galisteo

CONTRIBUTED PAPERS: ASPT / IOPB / Systematics Section, BSA Monocots

Presiding: CAROL A. WILSON, Department of Biology, Portland State University, Portland, OR 97207. Tele: 503-725-3870, E-mail: bwcw@odin.pdx.edu.

8:00 27-1 Davis, J.I.1*, D.Wm. Stevenson1,2, L. Campbell2, D. Goldman1, C. Hardy1,2, F. Michelangeli1,2, M. Simmons1, and C. Specht2. 1Cornell University, Ithaca, NY; 2The New York Botanical Garden, Bronx. Phylogenetic relationships among the monocots, as inferred from morphology and nucleotide sequence variation in three genes.

8:15 27-2 Soros, Connie L.* and Donald H. Les. University of Connecticut, Storrs, CT; University of Guelph, ON, Canada. Phylogenetic relationships in the Alismataceae.

8:30 27-3 Keener, Brian R.*, Robert R. Haynes, Charlotte Lindqvist, and Victor A. Albert. The University of Alabama, Tuscaloosa. Molecular systematics of Sagittaria (Alismataceae).

8:45 27-4 Reese, Nannette*, Robert R. Haynes, Charlotte Lindqvist, and Victor A. Albert. The University of Alabama, Tuscaloosa. A morphological and molecular cladistic analysis of Echinodorus with emphasis on the placement of E. floridanus (Alismataceae).

9:00 27-5 Haynes, Robert R.*, Charlotte Lindqvist, and Victor A. Albert. The University of Alabama, Tuscaloosa. Molecular systematics of Potamogeton (Potamogetonaceae).

9:15 27-6 Les, Donald H.1*, Michael L. Moody1, Surrey W. L. Jacobs2, and Randall J. Bayer3. 1University of Connecticut, Storrs; 2Royal Botanic Garden, Sydney, Australia; 3Division of Plant Industry, CSIRO, Canberra, Australia. Systematics and taxonomy of Australian seagrasses (family Zosteraceae).

9:30 27-7 McPherson, Marc A.* and Sean W Graham. University of Alberta, Edmonton, Canada. Inference of Asparagales phylogeny using a large chloroplast data set.

9:45 27-8 Bogler, David J.1,2*, Tim Rawlings2, and JavieR Francisco-Ortega1,2. 1Fairchild Tropical Garden, Miami, FL; 2Florida International University, Miami. Evolutionary relationships in Dasylirion (Nolinaceae): an assessment using AFLP markers.

10:00 BREAK

10:15 27-9 Wilson, Carol A. Portland State University, OR. A phylogenetic study of Iris subgenus Iris utilizing matK sequence and morphological data.

10:30 27-10 Cameron, Kenneth M. The New York Botanical Garden, Bronx. An expanded phylogenetic analysis of Orchidaceae using three plastid genes: rbcL, atpB, and psaB.

10:45 27-11 Freudenstein, John V.1*, Cassio van den Bergh2, W. Mark Whitten3, Kenneth M. Cameron4, Douglas H. Goldman5, and Mark W. Chase2. 1The Ohio State University, Columbus; 2Royal Botanic Gardens, Kew, United Kingdom; 3University of Florida, Gainesville; 4The New York Botanical Garden, Bronx; 5Cornell University, Ithaca, NY. A multi-locus combined analysis of Epidendroideae (Orchidaceae).

11:00 27-12 Bateman, Richard M.* and Peter M. Hollingsworth. Natural History Museum, London, United Kingdom; Royal Botanic Garden, Edinburgh, United Kingdom. Phylogenetics of Tribe Orchideae (Orchidaceae).

11:15 27-13 Salazar, Gerardo A.1,2, Mark W. Chase1, and Martin Ingrouille2.* 1Royal Botanic Gardens, Kew, United Kingdom; 2University of London, United Kingdom. Phylogenetic assessment of subtribe Spiranthinae and tribe Cranichideae (Orchidaceae) from four plastid and one nuclear DNA sequence datasets.

11:30 27-14 AlvareZ, Aida1,2* and Kenneth Cameron1. 1The New York Botanical Garden, Bronx; 2The City University of New York, Bronx. Phylogenetic analysis of Gomphichis and the subtribe Prescottiinae (Orchidaceae).

11:45 27-15 Fay, Michael F.1*, Kate Borland2, Penelope Stranc2, and Mark W. Chase1. 1Royal Botanic Gardens, Kew, United Kingdom; 2Smith College, Northampton, MA. Phylogenetics of the genus Tulipa (Liliaceae): evidence from five plastid DNA regions.

8:00 AM - 12:00 PM ACC, 215-Mesilla

CONTRIBUTED PAPERS: ASPT / IOPB / Systematics Section, BSA Molecular evolution and polyploidy

Presiding: J. CHRIS PIRES, Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, UK. Tele: 020-8332-5312, E-mail: j.pires@rbgkew.org.uk.

8:00 28-1 Simmons, Mark P.* and John V. Freudenstein. The Ohio State University, Columbus. The effects of increasing genetic distance on alignment of, and tree construction from, rDNA internal transcribed spacer sequences.

8:15 28-2 GOERTZEN, LESLIE R.*, JAMIE J. CANNONE, ROBIN R. GUTELL, and ROBERT K. JANSEN. University of Texas, Austin. ITS secondary structure derived from comparative analysis: implications for sequence alignment and phylogeny in the Asteraceae.

8:30 28-3 Verboom, G. Anthony*, Simon T. Malcomber, Andrew N. Doust, and Elizabeth A. Kellogg. University of Missouri, St. Louis. Sequence variation in the KNOTTED1 gene family across the grass family (Poaceae): implications for protein primary and secondary structure.

8:45 28-4 Malcomber, Simon T.*, Andrew N. Doust, Tony Verboom, and Elizabeth A. Kellogg. University of Missouri, St. Louis. Nucleotide and amino acid sequence evolution of tassleseed2 in Poaceae and implications for estimated secondary protein structure.

9:00 28-5 Sanderson, Michael J. University of California, Davis. Estimating absolute rates of molecular evolution and divergence times: a penalized likelihood approach.

9:15 28-6 Smith, James F.1*, David A. Baum2, and Lena Hileman3. 1Boise State University, ID; 2University of Wisconsin, Madison, WI; 3Harvard University Herbaria, Cambridge, MA. Evolution and phylogenetic analysis of Gcyc (a Gesneriaceae cycloidea homolog) in subfamily Gesnerioideae (Gesneriaceae).

9:30 28-7 Kelchner, Scot A. CSIRO Plant Industry, Canberra, Australia; The Australian National University, Canberra, Australia. Chloroplast introns in plant systematics.

9:45 28-8 Cimino, M.T.*, L.M. Brinkac, M.E. Hopkins, N.A. Gross, and R.A. Bever. The Bode Technology Group, Inc., Springfield, VA. Molecular systematic analysis of botanical trace evidence.

10:00 BREAK

10:15 28-9 Li, Changbao1,2*, Daming Zhang1, Song Ge1, De-Yuan Hong1, and Tao Sang2. 1Chinese Academy of Sciences, Beijing, China; 2Michigan State University, East Lansing. Genomic in situ hybridization: a useful tool for understanding genome evolution of Oryza (Poaceae).

10:30 28-10 Chase, Mark W.1*, Antony V. Cox1, Sandy Knapp2, Jeffrey Josephs1, and Alex S. Parokonny 3,4. 1Royal Botanic Gardens, Kew,United Kingdom; 2The Natural History Museum, London, United Kingdom; 3Institute of Cell Biology and Genetics, Kiev, Ukraine; 4Nottingham University, United Kingdom. Molecular systematics, GISH, and the origin of amphidiploids in Nicotiana (Solanaceae).

10:45 28-11 Tate, Jennifer A.* and Beryl B. Simpson. University of Texas, Austin. Double trouble: multiple origins of polyploidy in Tarasa (Malvaceae).

11:00 28-12 Sherwood, Anna M1*, Pamela S SoltiS2, and Douglas E Soltis3. 1Washington State University, Pullman; 2University of Florida, Gainesville; 3University of Florida, Gainesville. ITS sequence variation in Tragopogon (Asteraceae): phylogeny and gene evolution in allopolyploids.

11:15 28-13 Pires, J. Chris1*, Anna M. Sherwood2, K. Yoong Lim3, Andrew R. Leitch3, Ilia J. Leitch1, Michael D. Bennett1, Pamela S. Soltis4, and Douglas E. Soltis4. 1Royal Botanic Gardens, Kew, United Kingdom; 2Washington State University, Pullman; 3University of London, United Kingdom; 4University of Florida, Gainesville. Integrating molecular cytogenetics and phylogenetics: genome evolution in diploid and polyploid Tragopogon (Asteraceae).

11:30 28-14 Doyle, Jeff J.1*, Jane L. Doyle1, Jason T. Rauscher1, Reid G. Palmer2, and Tony Brown3. 1Cornell University, Ithaca, NY; 2USDA-ARS CICGR, Ames, IA; 3CSIRO Plant Industry, Canberra, Australia. Dissecting an extensive polyploid complex in Glycine subgenus Glycine (Leguminosae) using low copy nuclear genes, nuclear ribosomal genes, and chloroplast sequences.

11:45 28-15 Sang, Tao. Michigan State University, East Lansing. Utility of low-copy nuclear genes in plant phylogenetics.

8:00 AM - 11:15 AM ACC, 201-La Cienega

CONTRIBUTED PAPERS: Teaching Section, BSA Teaching and learning plant biology in the 21st Century

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

8:00 29-1 RICE, STANLEY A. Southeastern Oklahoma State University, Durant. South with the spring: Teaching evolution through budburst times of deciduous trees.

8:15 29-2 SCHERER, JACQUELYN*; GARLAND R. UPCHURCH, Jr.; and MARGARET J. KNAUS. Southwest Texas State University, San Marcos. A laboratory exercise for teaching plant-climate relationships.

8:30 29-3 RICE, STEVEN K.*; GRANT E. BROWN; and R. PAUL WILLING. Union College, Schenectady, NY. Computer modeling exercises enhance investigative laboratory experiences in plant biology.

8:45 29-4 WOEPPEL, JAMES J. and DAVID WINSHIP TAYLOR.* Indiana University Southeast, New Albany. Increasing biology undergraduates' mathematical proficiency through math/biology course using of the computer program MATLAB.

9:00 29-5 PATIL, M. S.* and S. K. DESHPANDE. Regional Research Station, Bijapur, India and College of Agriculture, Bijapur, India. Agriculture education in India.


9:30 BREAK

9:45 29-6 THOMAS, MEGAN*; ROBERT REINSVOLD; and GERRY SAUNDERS. University of Northern Colorado, Greeley. Interaction of self-efficacy and inquiry in an introductory biology laboratory.

10:00 29-7 WOLF, STEVEN J. California State University Stanislaus, Turlock. Creating a web based digital image database.

10:15 29-8 NOYD, ROBERT K. U. S. Air Force Academy, Colorado Springs, CO. Connecting classroom concepts to the local flora: The Plant Profile Project.

10:30 29-9 WANDERSEE, JAMES H.* and ELISABETH E. SCHUSSLER. Louisiana State University, Baton Rouge and Southeastern Natural Sciences Academy, Augusta, GA. Plants that draw a crowd: an analysis of the visual characteristics of six unusual plants featured at botanic gardens.

10:45 29-10 GERBER, D. TIMOTHY. University of Wisconsin-La Crosse, La Crosse. K-8 educational outreach: The TULIP project.


8:15 AM - 11:30 AM ACC, 107-Aztec

CONTRIBUTED PAPERS: Ecological Section, BSA Evolutionary ecology and conservation biology

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

8:00 30-1 RICHARDS, J. H.,1* Q.J. STOBER2, R.D. JONES3, and S.L. RATHBUN1. 1Florida International University, Miami 2EPA Region 4 Science and Ecosystem Support Division, Athens, GA, 3 Southeast Environmental Research Center, Miami, FL. A quantitative analysis of wetland plant communities in south Florida Everglades.

8:15 30-2 DEVALL, MARGARET,1* NATHAN SCHIFF1, and DOUGLAS BOYETTE2. 1Bottomland Hardwoods Research, Stoneville, MS and 2Agricultural Research Service, Stoneville, MS. Ecology and reproductive biology of pondberry (Lindera melissifolia [Walt.] Blume, Lauraceae), an endangered species.

8:30 30-3 HUEBNER, CYNTHIA D. USDA Forest Service, Northeastern Research Station, Morgantown, WV. Distribution of invasive plant species in eastern oak-hickory forests of West Virginia.

8:45 30-4 MORRIS, LORNA L.* and JEFFREY L. WALCK. Middle Tennessee State University, Murfreesboro. Growth and reproduction of the nonnative Ligustrum sinense and native Forestiera ligustrina (Oleaceae): implications for invasibility of exotic shrubs.

9:00 30-5 BELL, TIMOTHY J.,1* MARLIN BOWLES2, JENNY MCBRIDE2, KARYI HAVENS3, and PATI VITT3. 1Chicago State University, IL 2Morton Arboretum, Lisle, IL and 3Chicago Botanic Garden, IL. Viability analysis of a restored Illinois population of the federal threatened Pitcher's Thistle (Cirsium pitcheri).

9:15 30-6 MEEKER, RALPH B.* and KATHERINE C. LARSON. University of Central Arkansas, Conway. Fragmentation in a Southern Oak-Hickory forest: impacts on species richness and invasibility.

9:30 30-7 MORROW, PATRICE A.1 and JOEL P. OLFELT.2* 1University of Minnesota, St. Paul and 2St. Olaf College, Northfield, MN. Defoliation elicits long term disappearance of clones.

9:45 30-8 PETERSEN, RAYMOND L.,* ANDREA FAUST, JACQUELINE NAGAWA, CHANDI THOMAS, and ANNICK VILMENAY. Howard University, Washington, DC. Foreign mosquito survivorship in the pitcher plant Sarracenia purpurea the role of the pitcher-plant midge Metriocnemus knabi.

10:00 BREAK

Presiding: MARGARET DEVALL, Center for Bottomland Hardwoods Research, P. O. Box 227, Stoneville, MS 38776. Tele: 504-866-3676, E-mail: mdevall@fs.fed.us.

10:30 30-9 DAVIES, STUART J.,1 SHAWN K.Y. LUM2*, RAYMUND CHAN3, and LUAN KENG WANG4. 1Harvard University Herbaria, Cambridge, MA 2National Institute of Education, Singapore, 3University of California, Berkeley and 4University of Washington, Seattle. Evolution of myrmecophytism in west Malesian species of Macaranga (Euphorbiaceae).

10:45 30-10 ST. OMER, LUCY. San Jose State University, CA. Parasitic choice of host individuals in a seemingly homogeneous environment.

11:00 30-11 WEEKLEY, CARL W.* and ERIC S. MENGES. Archbold Biological Station, Lake Placid, FL. Fire and Florida scrub: responses of 13 endemics and postburn community shifts.

11:15 30-12 RICE, STANLEY A,1* ERICA CORBETT1, DIANA L. BANNISTER1, JENNIFER MARBLE1,2, IAN B. MANESS1, and JONATHAN V. EDELSON2. 1Southeastern Oklahoma State University, Durant and 2Watkins Agricultural Research and Extension Center, Lane, OK. Seasonal changes in herbivore defense in oak leaves: results from bioassays.

8:30 AM - 11:30 AM ACC, 111-Cimarron

CONTRIBUTED PAPERS: ABLS / Bryological Section, BSA Bryophyte morphology, biology, conservation and systematics

Presiding: A. JONATHAN SHAW, Department of Biology, Box 90338, Duke University, Durham, NC 27708-0338. Tele: 919-660-7344, E-mail: shaw@duke.edu.

8:30 31-1 OLIVER, MELVIN J.*, JOHN A. WHEELER, BRENT D. MISHLER and JEFF VELTEN. USDA-ARS Plant Stress and Water Conservation Laboratory, Lubbock, TX. A bryophyte rehydrin trackable marker for the evolution of desiccation tolerance.

8:45 31-2 STARK, LLOYD R.* and CLAUDIO DELGADILLO. University of Nevada, Las Vegas. Is Crossidium really an annual? Initial observations from the Mojave Desert.

9:00 31-3 McLETCHIE, D. NICHOLAS*, GISELA GARCÍA-RAMOS and PHILIP H. CROWLEY. University of Kentucky, Lexington. A model of local sex-ratio dynamics and spore production in the dioecious liverwort Marchantia inflexa.

9:15 31-4 KRAYESKY, DAVID M. and BARBARA J. CRANDALL-STOTLER*. Southern Illinois University, Carbondale. An SEM photo atlas of spore terminology in the Fossombroniineae.

9:30 31-5 BRAGGINS, JOHN E., JOHN J. ENGEL, MATTHEW J. VON KONRAT* and PETER J. DE LANGE. University of Auckland, Auckland, New Zealand. Rare and threatened liverworts: an overlooked area of conservation in the New Zealand botanical region.

9:45 31-6 RISK, ALLEN C. Morehead State University, Morehead, KY. On the distribution, abundance, biology, and habitat of Fissidens hyalinus Wils. & Hook.

10:00 BREAK

Presiding: BARBARA J. CRANDALL-STOTLER, Department of Plant Biology, Southern Illinois University, Carbondale, IL 62901. Tele: 618-453-3232, E-mail: crandall@plant.siu.edu.

10:15 31-7 DE LUNA, EFRAÍN* and BEATRIZ BIASUSO. Instituto de Ecología, Xalapa, Ver., Mexico. Morphometric variation and species delimitation in the Braunia exserta complex (Hedwigiaceae).

10:30 31-8 SHAW, JON. Duke University, Durham, NC. What can molecular data tell us about species delineation in the peatmosses (Sphagnum)?

10:45 31-9 O'BRIEN, TERRY J. Rowan University, Glassboro, NJ. The dubious origins of pleurocarpous mosses: molecular evidence for the phylogenetic positions of Aulacomnium Schwägr. and Rhizogoniaceae.

11:00 31-10 COX, CYMON J.*, A. JONATHAN SHAW and SANDRA B. BOLES. Duke University, Durham, NC. Toward a sub-famial classification of the recircumscribed Mniaceae (Bryopsida).

11:15 31-11 GOFFINET, BERNARD*, A. JONATHAN SHAW and SANDRA BOLES. University of Connecticut, Storrs. Multigene phylogenetic reconstruction of the family Orthotrichaceae (Bryophyta).

8:30 AM - 12:00 PM ACC, 209-Pecos

SYMPOSIUM: AFS / Pteridological Section, BSA Evolution and adaptations of pteridophytes in dry climates

Organized by: GEORGE YATSKIEVYCH, Missouri Botanical Garden, P. O. Box 299, St. Louis, MO 63166. Tele: 314-577-9522, E-mail: george.yatskievych@mobot.org; and ELISABETH A. HOOPER, Division of Science, Truman State University, 100 E. Normal Street, Kirksville, MO 63501. Tele: 660-785-4623, E-mail: lhooper@truman.edu.

Presiding: GEORGE YATSKIEVYCH, Missouri Botanical Garden, St. Louis.

8:30 32-1 HOOPER, ELISABETH A.* and GEORGE YATSKIEVYCH. Truman State University, Kirksville, MO and Missouri Botanical Garden, St. Louis. Distribution of arid climates and drought-adapted pteridophytes, an introduction.

9:00 32-2 BENZING, DAVID, H. Oberlin College, Oberlin, OH. Ferns as epiphytes.

9:30 32-3 CARLQUIST, SHERWIN* and EDWARD SCHNEIDER. Santa Barbara Botanic Garden, Santa Barbara, CA. SEM studies of vessels in ferns of xeric habitats.

10:00 BREAK

10:30 32-4 OLIVER, MELVIN J.* and BRENT D. MISHLER. USDA-ARS, Lubbock, TX and University of California, Berkeley. Desiccation-tolerant pteridophytes: a unique position in the evolution of desiccation tolerance in land plants.

11:00 32-5 WINDHAM, MICHAEL D.* and CHRISTOPHER H. HAUFLER. University of Utah, Salt Lake City and University of Kansas, Lawrence. Apomixis in ferns: a consequence of marginal habitats and outcrossing?

11:30 32-6 GASTONY, GERALD J.* and GEORGE YATSKIEVYCH. Indiana University, Bloomington and Missouri Botanical Garden, St. Louis. Morphological reassessment of molecular phylogenetic inferences in the xerically adapted cheilanthoid ferns (Pteridaceae: Cheilanthoideae).

8:30 AM - 12:00 PM ACC, 113-Dona Ana

CONTRIBUTED PAPERS: Developmental and Structural Section, BSA Reproductive and dispersal structures and cell biology

Presiding: MELVIN R. DUVALL Department of Biological Sciences, Northern Illinois University, DeKalb, IL. Tele: 815-753-7806, E-mail: mel-duvall@niu.edu.

8:30 33-1 DUVALL, MELVIN R. Northern Illinois University, DeKalb. Screening a spurious synapomorphy: an ultrastructural study of "monocot" type anther wall development in Acorus L. (Acoraceae).

8:45 33-2 FREUDENSTEIN, JOHN V. and ELIZABETH M. HARRIS.*The Ohio State University, Columbus. Re-evaluating critical anther characters in Orchidaceae: a developmental anatomy approach.

9:00 33-3 HISER, KENNETH M.*, ANDREW N. DOUST, and ELIZABETH A. KELLOGG. University of Missouri, St. Louis. Inflorescence development and phylogenetic relationships of the genus Ixophorus.

9:15 33-4 VON BALTHAZAR, MARIA* and PETER K. ENDRESS. University of Zurich, Zurich, Switzerland. Floral structure and phylogeny of Buxaceae.

9:30 33-5 KONG, HONGZHI, ANMING LU, and ZHIDUAN CHEN. The Chinese Academy of Sciences, Beijing, China. Floral organogenesis of Chloranthus sessilifolius K. F. Wu (Chloranthaceae) with special emphasis on the morphological nature of the androecium of Chloranthus Sw.

9:45 33-6 ROTHWELL, GAR W.1* and RUTH STOCKEY2. 1Ohio University, Athens; 2University of Alberta, Edmonton, Canada. Pollen tubes, contractile tissue, and pollination biology in Cycadeoidales/Bennettitales.

10:00 BREAK

10:15 33-7 SCHNEIDER, HARALD1*, KATHLEEN M. PRYER1, and RICHARD LUPIA2. 1Duke University, Durham, NC; 2University of Oklahoma, Norman. A comparative analysis of structure and function of spores in extant heterosporous ferns (Salviniales).

10:30 33-8 OSBORN, JEFFREY M.1*, GAMAL EL-GHAZALY2, and RANESSA L. COOPER3. 1Truman State University, Kirksville, Missouri; 2Swedish Museum of Natural History, Stockholm, Sweden; 3University of Alberta, Edmonton, Canada. Development of the exineless pollen wall in Callitrichaceae and the evolution of underwater pollination.

10:45 33-9 HORNER, HARRY T. 1*, TERESA CERVANTES MARTINEZ1, TED HYMOWITZ2, A.H.D. BROWN3, and REID G. PALMER4. 1Iowa State University, Ames; 2University of Illinois, Champaign-Urbana; 3CSIRO Plant Industry, Canberra, Australia; 4USDA ARS CICGR, Ames, IA. A survey of calcium oxalate crystal patterns in leaves of the genus Glycine and related taxa.

11:00 33-10 SHOCKEY, KARA M.*, HARRY T. HORNER, and JONATHAN F. WENDEL. Iowa State University, Ames. Calcium oxalate crystals in the tribe Gossypieae and the genus Gossypium (cotton).

11:15 33-11 DAYANANDAN, P. 1* and J. PONSAMUEL2. 1Madras Christian College, Tambaram, India; 2Dow AgroSciences, Indianpolis IN. Electron microscopy of terpenoid secreting cells of neem (Azadirachta india A. Juss.).

11:30 33-12 KIM, INSUN. Keimyung University, Taegu, Korea. Ultrastructure and immunolocalization of the C4 photosynthetic enzyme in cotyledons and leaves of two Salsola species.

11:45 33-13 ZAVALETA-MANCERA, HILDA A. 1, 2*, IAN SCOTT2, and THOMAS HOWARD3. 1Universidad Autonoma del Estado de Mexico, Mexico; 2University of Wales, Aberystwyth Dyfed UK.; 3Institute of Grassland and Environmental Research, Aberystwyth Dyfed, UK. Re-differentiation of senescent Nicotiana rustica chloroplasts by cytokinins treatment.

9:00 AM - 11:45 AM ACC, 207-Ruidoso

CONTRIBUTED PAPERS: Paleobotanical Section, BSA Paleozoic and Mesozoic plants

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.

9:00 34-1 AXSMITH, BRIAN J.1*, RUDOLPH SERBET2, MICHAEL KRINGS2, THOMAS N. TAYLOR2, and EDITH L. TAYLOR2. 1 University of South Alabama, Mobile; 2University of Kansas, Lawrence. New intepretations of the enigmatic Paleozoic plants Spermopteris and Phasmatocycas.

9:15 34-2 SCHECKLER, STEPHEN E.1*, BRIGITTE MEYER-BERTHAUD2, and JEAN GALTIER2. 1Virginia Polytechnic Institute & State University, Blacksburg; 2 Universite Montpellier, France. Secondary phloem of the Late Devonian progymnosperm tree Archaeopteris.

9:30 34-3 CHITALEY, SHYA* and WILMER STOWE. Cleveland Museum of Natural History, Cleveland, OH. Spores from within the Late Devonian lycopsid cones of Ohio, U.S.A. and from the matrix around the cones.

9:45 34-4 KLAVINS, SHARON D.*, EDITH L. TAYLOR, and THOMAS N. TAYLOR. University of Kansas, Lawrence, KS. Anatomy of the ovulate cupules of Umkomasia (Corystospermales) from the Triassic of Antarctica.

10:00 BREAK

10:15 34-5 STOCKEY, RUTH1* and GAR W. ROTHWELL2. 1University of Alberta, Edmonton, Alberta, Canada; 2Ohio University, Athens. Permineralized cycad seeds from the Jurassic of British Columbia, Canada.

10:30 34-6 STOCKEY, RUTH1* and GAR W. ROTHWELL2. 1University of Alberta, Edmonton, Alberta, Canada; 2Ohio University, Athens. An ovulate Williamsonia cone from the Upper Cretaceous of western North America.

10:45 34-7 ROTHWELL, GAR W.1* and RUTH STOCKEY2. 1Ohio University, Athens; 2University of Alberta, Edmonton, Alberta, Canada. Systematic characters of ovulate Cycadeoidea/Bennettites cones from the Cretaceous of Vancouver and Hornby Islands, British Columbia, Canada.

11:00 34-8 GANDOLFO, MARIA A.*, KEVIN C. NIXON, and WILLIAM L. CREPET. Cornell University, Ithaca, NY. Fossil flowers with possible nymphaealean affinities.

11:15 34-9 CREPET, WILLIAM L.*, KEVIN C. NIXON, and MARIA A. GANDOLFO. Cornell University, Ithaca, NY. A Cretaceous Atlantic coastal plain "ericoid" complex.

11:30 34-10 NIXON, KEVIN C.*, MARIA A. GANDOLFO, and WILLIAM L. CREPET. Cornell University, Ithaca, NY. Origins of Fagaceae: a review of relevant Turonian fossil material from New Jersey.

9:00 AM - 11:30 AM ACC, 203-Tijeras

CONTRIBUTED PAPERS: Physiological Section, BSA Stress Physiology

Presiding: PETER F. STRAUB, Biology Program, The Richard Stockton College, Pomona, NJ 08240. Tele: 609-652-4556, E-mail: pete.straub@stockton.edu.

9:00 35-1 NEILL, SAMUEL O.*, KEVIN S. GOULD, PAUL A. KILMARTIN, KENNETH R. MARKHAM, and KEVIN A. MITCHELL. University of Auckland, Auckland, New Zealand. Antioxidant strategies of red versus green leaves.

9:15 35-2 HACKE, UWE G.* and JOHN S. SPERRY. University of Utah, Salt Lake City. The threshold for reversal of xylem embolism in Laurus nobilis.

9:30 35-3 BELL, HESTER L.* 1,2 and JAMES W. O'LEARY1. 1University of Arizona, Tucson, and 2Rancho Santa Ana Botanic Garden, Claremont, CA. Response of Sporobolus virginicus (Poaceae) to salinity.

9:45 35-4 STRAUB, PETER F. Richard Stockton College, Pomona, NJ. Proline catabolism in Bradyrhizobium japonicum: drought effects.

10:00 BREAK

10:30 35-5 LUTTS, S*, J P MARTINEZ, M BAJJI, and J M KINET. Catholic University of Louvain, Belgium. Sodium implication in the response of the halophyte species Atriplex halimus L. to various abiotic stresses.

10:45 35-6 RATNAYAKA, H. HARISH* 1, WILLIAM T. MOLIN2, and TRACY M. STERLING1. 1New Mexico State University, Las Cruces, and 2USDA-ARS, Stoneville, MS. Oxidative stress tolerance in cotton and spurred anoda under competition and drought.

11:00 35-7 THORHAUG, ANITRA* 1 and HAROLD WANLESS2. 1658 NE 70 ST, Miami, FL and 21231 Genoa ST, Coral Gables, FL. The role of hurricanes, tornados and gale force winds in seagrass distribution in subtropical and tropical nearshore waters.

11:15 35-8 THORHAUG, ANITRA. 658 NE 70 St., Miami, FL. Test plots of seagrass species affecting long-term survival of restored seagrass.

11:15 AM - 12:00 PM ACC, 201-La Cienega

Presiding: HENRI MAURICE, Barat College-Box 618, 700 E. Westleigh Road, Lake Forest, IL 60045. Tele: 847-604-6365, E-mail: botprof@aol.com.

11:30 AM - 12:30 PM ACC, 203-Tijeras

Presiding: PETER F. STRAUB, Biology Program, The Richard Stockton College, Pomona, NJ 08240. Tele: 609-652-4556, E-mail: pete.straub@stockton.edu.