TUESDAY AFTERNOON, 5 AUGUST 1997


12:00 LUNCHEON: Economic Botany section.

12:15 BUSINESS MEETING: Teaching Section.

REINSVOLD, ROBERT J. Presiding.


SESSION 51

Presiding: LENTZ, DAVID L., New York Botanical Garden, Bronx, NY 10458 (718/817-8171) <dlentz@nybg.org>.

SPECIAL LECTURE: A world view of peppers. BSA Economic Botany section.

1:00 BSA 51.1 ESHBAUGH, W. HARDY, Miami University, Oxford, OH. A world view of peppers.

1:30 - 2:00 BUSINESS MEETING: Economic Botany Section of BSA.

LENTZ, DAVID L., presiding.


SESSION 52

CONTRIBUTED PAPERS: A. J. Sharp student paper session. Bryological and Lichenological section. Joint session with ABLS session 5 and with the Canadian Botanical Association (CBA/ABC).


SESSION 53

Presiding: SOUTHWORTH, DARLENE and RUSSELL, SCOTT D.

SYMPOSIUM: Plant gametes and fertilization. Part II. Developmental and Structural section, BSA, and Structure and Development section, CBA/ABC. Organized by SOUTHWORTH, DARLENE, Department of Biology, Southern Oregon State College, Ashland, OR 97520 (514/552-6865, <southworth@wpo.sosc.osshe.edu>; and RUSSELL, SCOTT D., Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019-0245 (405/325-6234, <srussell@ou.edu>.

1:30 BSA 53.1 RUSSELL, SCOTT D. University of Oklahoma, Norman. Attraction and transport of sperm cells during fertilization:

2:00 BSA 53.2 SOUTHWORTH, DARLENE. Southern Oregon State College, Ashland. Antibodies to plant sperm cells:

2:30 BSA 53.3 MOGENSEN, H. LLOYD, RUSCHE, MAXINE L., SHI, LIANG, and KEIM, PAUL. Northern Arizona University, Flagstaff and Pioneer Hi-Bred International, Johnston, IA. B chromosome-facilitated studies of maize sperm cells based upon a molecular probe:

3:00 Recess

3:15 BSA 53.4 ALDON, DIDIER, DIGONNET, CATHERINE, FAURE, JEAN-EMMANUEL, LEDUC, NATHALIE, ROUGIER, MIREILLE, and DUMAS, CHRISTIAN. Ecole Normale Superiere de Lyon, France. In vitro fertilization in flowering plants: methodologies, results and prospects:

3:45 BSA 53.5 CASS, DAVID D. University of Alberta, Edmonton. Calcium in fertilization in maize:


SESSION 54

Presiding: NAMBUDIRI, E.M. VASU, Biology Department, Nipissing University, North Bay, ON, P1B 8L7 (705/474-3450).

CONTRIBUTED PAPERS: Leaves, stems, and morphology. Developmental and Structural Section, BSA, and Structure and Development Section, CBA/ABC.

1:00 BSA 54.1 NAMBUDIRI, E.M.V.* and NOSKO, PETER. Nipissing University, North Bay, ON. Structural features of leaves and wood of two boreal conifers in coastal regions of western Newfoundland, Canada.

1:15 BSA 54.2 SOROS, CONNIE L.* and DENGLER, NANCY G. University of Toronto, ON. Ontogenetic derivation and differentiation of photosynthetic tissues in C4 Cyperaceae.

1:30 BSA 54.3 VITT, PATI* and JONES, CYNTHIA S. University of Connecticutt, Storrs. Phenology of inflorescence initiation and shoot architecture in Arisaema triphyllum.

1:45 BSA 54.4 HORN, JAMES W.* and DICKISON, WILLIAM C. University of North Carolina, Chapel Hill. Structural biology and phylogenetics of the Sphaerosepalaceae and Diegodendraceae.

2:00 BSA 54.5 FISHER, JACK B. Fairchild Tropical Garden, Miami, FL. Branching patterns and architecture in palms: New observations and their value in systematics.

2:15 BSA 54.6 LERSTEN, NELS R.* and CURTIS, JOHN D. Iowa State University, Ames, and University of Wisconsin, Stevens Point. Subepidermal idioblasts in leaves of Scrophularia and Verbascum: First verified report from Scrophulariaceae.

2:30 BSA 54.7 NIKLAS, K.J. Cornell University, Ithaca, NY. The mechanical behavior of hollow internodes in bending and twisting.

2:45 Recess

3:00 BSA 54.8 KORN, ROBERT W. Bellarmine College, Louisville, KY. Timecourse analysis of stomatal clusters formation in Begonia semperflorens Link and Otto.

3:15 BSA 54.9 CHEN, CHI-CHUAN, CHIU, SHAU-TING, and CHEN, YUNG-REUI*. National Taiwan University, Taipei, and National Museum of Natural Sciences, Taichung, Taiwan. Observations on stomata and water pores in Ficus formosana Maxim. f. shimadae Hay.

3:30 BSA 54.10 CHARLTON, W. ALAN. Manchester University, UK. The leaf-stipule-gland continuum in Azara and its relationship to shoot dorsiventrality.

3:45 BSA 54.11 TOOLIN, LAURENCE. University of Arizona, Tucson. Plantlets produced in inflorescences of Aristida (Gramineae): Lodicules are leaves!

4:00 BSA 54.12 BROWNING, DAVID G. University of Rhode Island, Kingston. Sound produced by maize leaves: Can we hear corn grow?

4:15 BSA 54.13 MEICENHEIMER, ROGER D. Miami University, Oxford, OH. Decussate to spiral transitions in phyllotaxis.


SESSION 55

Presiding: DENGLER, NANCY G. Department of Botany, University of Toronto, Toronto, ON M5S 1A1 (416/978-3536) <dengler@botany.utoronto.ca>.SPECIAL LECTURE: Development as a reflection of evolution in the vascular system of ferns and seed plants. Developmental and Structural Section, BSA, and Structure and Development Section, CBA/ABC.

4:30 BSA 55.1 DENGLER, NANCY G. University of Toronto, ON. Introduction.

4:35 BSA 55.2 STEEVES, TAYLOR A. University of Saskatchewan, Saskatoon. Development as a reflection of evolution in the vascular system of ferns and seed plants.


SESSION 56

Presiding: KRESS, JOHN W., Department of Botany, NHB-166, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 (202/357-3392) <mnhbo008@sivm.si.edu>.

SPECIAL LECTURE: Tropical biodiversity losses: Magnitude and solutions. Tropical Botany and Ecological Sections. Joint session with the Canadian Botanical Association (CBA/ABC).

1:15 BSA 56.1 BAWA, KAMALJIT, S. University of Massachusetts, Boston. Tropical biodiversity losses: magnitude and solutions.


SESSION 57

Presiding: KRESS, JOHN W., Department of Botany, NHB-166, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560 (202/357-3392) <mnhbo008@sivm.si.edu>.

CONTRIBUTED PAPERS: Tropical Botany. Tropical Botany Section. Joint session with the Canadian Botanical Association (CBA/ABC).

2:15 BSA 57.1 LEE, DAVID W., TURNER, TOM, and DAYANANDAN, S. Florida International University, Miami and University of Massachusetts, Boston. Phylogenetic and ecological influences on the light responses of tropical Asian rainforest tree seedlings.

2:30 BSA 57.2 KRESS, JOHN W*. and PEDERSEN, LOUISE B. NMNH, Smithsonian Institution, Washington, DC and University of Copenhagen K, Denmark. Honeyeater (Meliphagidae) pollination and the floral biology of Polynesian Heliconia.

2:45 BSA 57.3 ST. OMER, LUCY* and BARCLAYS, GREGOR. San Jose State University, CA. Examinations of soil and plant characteristics on tropical strand sites.

3:00 BSA 57.4 EWERS, F.W.*, CARLTON, M.R., FISHER, J.B., KOLB, K.J. and TYREE, M.T. Michigan State University, East Lansing. Evolution of xylem vessel diameter in terrestrial roots of tropical vines.


SESSION 58

Presiding: WILSEY, BRIAN. McGill University, Montréal, PQ H3A 1B1 (514-398-6450).

CONTRIBUTED PAPERS: Physiological Ecology and Reproductive Biology. Ecological Section. Joint session with the Canadian Botanical Association (CBA/ABC).

1:30 BSA 58.1 WILSEY, BRIAN J.*; COLEMAN, JAMES S. and MCNAUGHTON, SAMUEL J. McGill University, Montréal, PQ. Effects of elevated CO2 and defoliation on grasses: a comparative ecosystem approach.

1:45 BSA 58.2 NOSKO, PETER. Nipissing University, North Bay, ON. Growth of two boreal conifer species along salt spray gradients in western Newfoundland.

2:00 BSA 58.3 WANG, LILY. Universite Laval, Ste-Foy, PQ. Tracheid growth of black spruce (Picea mariana) affected by temperature at treeline (subarctic Québec).

2:15 BSA 58.4 TAUB, DANIEL. State University of New York, Stony Brook. Climate and the distribution of grass subfamilies and variants of C4 phytosynthesis in the United States.

2:30 BSA 58.5 SEVERN, WILLIAM A.* and MURRAY, LAURA . University of Maryland, Hornpoint Environmental Lab, Cambridge, MD. Physiological and morphological response of Potamogeton perfoliatus across scales of depth, nutrient loading, and trophic complexity under mEsocosm conditions.

2:45 Recess

3:00 BSA 58.6 ROBISON, SCOTT A.* and MCCARTHY, BRIAN C. Ohio University, Athens. Estimation of leaf area in an eastern deciduous forest using direct and indirect techniques.

3:15 BSA 58.7 DAIYUAN, PAN*, BOUCHARD, ANDRE, LEGENDRE, PIERRE and DOMON, GERALD. Université de Montréal, PQ. Spatial structure of an inland halophilous community in relation to environmental factors in Xinjiang, China.

3:30 BSA 58.8 PARKER, HESTER MCMILLAN. Cornell University, Ithaca, NY. A comparison of morphological and physiological components of growth in annual and perennial congeners in the genera Zea and Phaseolus.

3:45 BSA 58.9 MCKENNA, MARGARET F.*; HOULE, GILLES and LAPOINTE, LINE. Université Laval, Sainte-Foy, PQ. The biology of Floerkea proserpinacoides. I. The effect of irradiance on growth and reproducton.

4:00 BSA 58.10 LAPOINTE, LINE. Université Laval, Sainte-Foy, PQ. Carbon allocation in two spring ephemerals in response to repeated source and sink manipulations over a four-year period in natural conditions.

4:15 BSA 58.11 BRUMELIS, GUNTIS . University of Latvia, Riga, Latvia. The transfer of elements between annual growth segments and cellular compartments of feathermoss Hylocconium splendens, in relation to growth and seasonal uptake dynamics.

4:30 BSA 58.12 SMITH, DIANE M.* and HUTCHINSON, THOMAS C. Trent University, Peterborough, ON. Intensity of pollen limitation varies among populations of Trillium grandiflorum in southern Ontario.

4:45 BSA 58.13 BAKER, ANGELA M.*; THOMPSON, JOHN D. and BARRETT, SPENCER C.H. University of Toronto, ON and CNRS, Montpellier, France. A comparative study of stigma-height polymorphisms in Narcissus assoanus and N. dubius.

5:00 BSA 58.14 WORLEY, ANNE C.* and BARRETT, SPENCER C.H. University of Toronto, ON. Phenotypic and genetic conponents of floral display in Eichornia paniculata (Ponteriaceae).


SESSION 59

Presiding: PRYER, KATHLEEN M.

SYMPOSIUM: Relationships and fossil history of ferns. Sponsored by Paleobotanical, Pteridological, and Systematic sections, ASPT, American Fern Society, Canadian Botanical Association (CBA/ABC), and the Green Plant Phylogeny Research Coordination Group. Joint session with AFS session 5. Organized by PRYER, KATHLEEN M., Department of Botany, The Field Museum of Natural History, Roosevelt Road at Lake Shore Drive, Chicago, IL 60605-2496 (312/922-9410 ext. 724); SMITH, ALAN R., University Herbarium, University of California, 1001 Valley Life Sciences Building, #2465, Berkeley, CA 94720-2465 (510/643-1000); ROTHWELL, GAR W., Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701 (614/593-1129); and KENRICK, PAUL, Department of Paleobotany, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm, Sweden (46-8-666-4143).

1:00 BSA 59.1 PRYER, KATHLEEN M. Field Museum of Natural History, Chicago, IL. Introduction.

1:10 BSA 59.2 KENRICK, PAUL. Swedish Museum of Natural History, Stockholm. Early vascular plants and the origin of ferns.

1:40 BSA 59.3 PHILLIPS, TOM L. and DIMICHELE, WILLIAM A.* University of Illinois, Urbana and NMNH Smithsonian Institution, Washington, DC. Paleoecology of ferns, with emphasis on the Paleozoic and Mesozoic.

2:10 BSA 59.4 ROTHWELL, GAR, Ohio University, Athens. The importance of fossils in reconstructing fern phylogeny.

2:40 BSA 59.5 HUELSENBECK, JOHN, University of California, Berkeley. Maximum likelihood estimation of phylogeny using stratigraphic data and the implications for combining diverse sources of data.

3:10 Recess

3:30 BSA 59.6 WOLF, PAUL G.*; PRYER, KATHLEEN M. and IRWIN, JODI A. Utah State University, Logan and Field Museum of Natural History, Chicago, IL. Multiple gene approaches to fern phylogeny.

3:55 BSA 59.7 CONANT, DAVID S*.; STEIN, DIANA B.; ATTWOOD, DEBORAH K.; RAUBESON, LINDA A.; PERERA, SAMANTHI; ZIMMER, ELIZABETH A.; SWEERE, JENNIFER; WHITE, RICHARD A.; TURNER, MELVIN D.; NISHIDA, HARUFUMI; UEDA, KUNIHIKO, and PINTAUD, JEAN-CHRISTOPHE. Lyndon State College, Lyndonville, VT, Mt. Holyoke College, South Hadley, MA, Central Washington University, Ellensburg; Smithsonian Institution, Washington, DC; Duke University, Durham, NC; Chuo University, Tokyo, Japan; Kanazawa University, Kanazawa, Japan; and ORSTROM, Noumea, New Caledonia. A case study of the evolution of the Cyatheaceae (tree ferns): Comparing the fossil record with neobotanical evidence.

4:20 BSA 59.8 PRYER, KATHLEEN M.* and SMITH, ALAN R. Field Museum of Natural History, Chicago, IL and University of California, Berkeley. Character evolution and fern phylogeny.

4:45 BSA 59.9 CRANE, PETER R. Field Museum of Natural History, Chicago, IL. Symposium summary and discussion.


SESSION 60

CONTRIBUTED PAPERS: General. Systematics section. Joint session with ASPT session 11 and with the Canadian Botanical Association (CBA/ABC).


SESSION 61

CONTRIBUTED PAPERS: Orchidaceae. Systematics section. Joint session with ASPT session 12 and with the Canadian Botanical Association (CBA/ABC).


SESSION 62


CONTRIBUTED PAPERS: General. Systematics section. Joint session with ASPT session 13 and with the Canadian Botanical Association (CBA/ABC).

5:15 - 6:15 BUSINESS MEETING. Botanical Society of America

CRAWFORD, DANIEL J. presiding.


TUESDAY EVENING, 5 AUGUST 1997


6:00 MIXER: Ecological Section. Joint with the BSA Tropical Biology Section and the Torrey Botanical Club.