BSA PAST-PRESIDENT'S SYMPOSIUM: G. Ledyard Stebbins and evolutionary biology in the next millenium. Organized by: CRAWFORD, DANIEL J., Department of Plant Biology, The Ohio State University, Columbus, OH 43210. 614/292-2725, email:

8:30 BSA 42.1 LEVIN, DONALD A. University of Texas, Austin. Species and speciation: from G. L. Stebbins to tomorrow.

9:15 BSA 42.2 ARNOLD, MICHAEL L. University of Georgia, Athens. Paradigm lost: natural hybridization and evolution.

10:00 Break

10:15 BSA 42.3 SOLTIS, D. E.* and SOLTIS, P. S. Washington State University, Pullman. Plants, polyploidy, and the origin of species.

11:00 BSA 42.4 CHASE, MARK W. Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom. The impact of molecular data on ideas concerning the origin and radiation of the angiosperms.


Presiding: NIKLAS, KARL J. Section of Plant Biology, Cornell University, Ithaca, NY. 607-255-8727,

CONTRIBUTED PAPERS: Roots and Shoots. Developmental and Structural section.

9:00 BSA 43.1 MIKESELL, JAN E. Gettysburg College, PA. Influences of plant density and root excision on development in Zea mays.

9:15 BSA 43.2 GLADISH, DANIEL K.* AND TERUO NIKI. Miami University, Oxford,OH and Takushoku University, Tokyo. Factors influencing the formation rate of high temperature-induced vascular cavities in pea roots (Pisum sativum L. cv. Alaska ).

9:30 BSA 43.3 SEAGO, JAMES L., JR. SUNY at Oswego, NY. Development and structure of the root cortex of the wetland plant, Caltha palustris.

9:45 BREAK

10:00 BSA 43.4 BRIAND, CHRISTOPHER H.*, SHANNON M. CAMPION, DAMION A. DZAMBO, AND KERRI A. WILSON. Salisbury State University, MD. Mechanical properties of the trunk of the devil's walking stick (Aralia spinosa L.): Implications for tree architecture.

10:15 BSA 43.5 NIKLAS, KARL J. Cornell University, Ithaca, NY. A statistical approach to mechanical factors of safety.

10:30 BSA 43.6 NYFFELER, RETO. Universitaet Zuerich, Switzerland; present address: Harvard University Herbaria, Cambridge, MA. Parallel trends in stem characters of West-Andean cacti (Cactaceae, Notocacteae).

10:45 BSA 43.7 SCHECKLER, STEPHEN E.* AND JEAN GALTIER. Virginia Polytechnic Institute & State University, Blacksburg and Université Montpellier II, France. Secondary tissues and vascular cambium mechanics of basal lignophytes.

11:00 BSA 43.8 KORN, ROBERT. Bellarmine College, Louisville, KY. Analysis of shoot organization in six species of the Cupressaceae based on chimerical behavior.

11:15 BSA 43.9 KWIATKOWSKA, DOROTA. Wroclaw University, Poland. Patterns of shoot primary structure related to phyllotaxis.


Presiding: HANSEN, DAVID. Department of Biology, Pacific Lutheran University, Tacoma, WA 98447, 233/535-7571, email:

CONTRIBUTED PAPERS: Physiological Ecology. Ecological section.

9:00 BSA 44.1 HANSEN, DAVID*, HUDIBURG, TARA, AND TURNOCK, MEGAN. Pacific Lutheran University, Tacoma, WA. Sap-flow, gas exchange and water-relations in red alder (Alnus rubra) and big leaf maple (Acer macrophyllum).

9:15 BSA 44.2 TORABINEJAD, JAVAD*, CALDWELL, MARTYN, M., AND FRY, JAMES, D. Utah State University, Logan. Morphological and flowering time responses of seven ecotypes of Arabidopsis thaliana and their F1 hybrids to supplementary ultraviolet-B radiation.

9:30 BSA 44.3 SCHWEITZER, J.A.* AND WHITHAM, T.G. Northern Arizona University, Flagstaff. The effect of hybridization on physiological responses to herbivores.

9:45 BSA 44.4 BOYD, ROBERT S.* AND MARTENS, SCOTT N. Auburn University, AL, University of California, Davis. Hyperaccumulated Ni does not defend Streptanthus polygaloides from attack by Cuscuta.

10:00 BSA 44.5 BARRADAS, VíCTOR L.* AND RAMOS-VAZQUEZ, ALFREDO. Universidad Autonoma de México, D.F. . Stomatal conductance in a xerophylus shrubland which is developing in a lava substratum.

10:15 Break

10:30 BSA 44.6 MARTZ, TARA E.* AND FRANCKO, DAVID A. Miami University, Oxford OH. Primary production of phytoplanton, macrophytes and attatched epiflora at the Old Woman Creek National Estuarine Research Reserve, Huron, OH.

10:45 BSA 44.7 EVANS, LANCE S. Manhattan College, Bronx, NY . Needle and stem injuries to red spruce in the Adirondack Mountains.

11:00 BSA 44.8 BART, DAVID J.*, RAICHEL, DIANA, AND HARTMAN, JEANMARIE. Rutgers, The State University of New Jersey, New Brunswick. The effects of transpiration rates on Phragmites australis dieback in a filled salt marsh.

11:15 BSA 44.9 SALTMAN, TAMARA* AND GALLAGHER, JOHN L. University of Delaware, Lewes. An Analysis of Phragmites Use in Municipal Sludge Drying Beds.


CONTRIBUTED PAPERS: Floras and Gymnosperms. Systematics section; joint session with the American Society of Plant Taxonomists session 10.


COLLOQUIUM: Systematics of the North American Senecioneae. Systematics section; joint session with the American Society of Plant Taxonomists session 11.


Presiding: SHIPMAN, J. S. Math, Science, and Technology, Bunker Hill Community College, 250 New Rutherford Avenue, Boston, MA 02129-2991, (617/926-3814).

CONTRIBUTED PAPERS: New Ideas in Teaching Botany and Undergraduate Biology. Teaching section.

8:00 BSA 47.1 KRAMER, DAVID W. Ohio State University at Mansfield. Designing hands-on botany activities for K-8 classrooms.

8:15 BSA 47.2 KRAMER, DAVID W. Ohio State University at Mansfield. Planning and implementing a plant biology workshop for K-8 teachers.

8:30 BSA 47.3 BRICKER, JERALD S.* AND HENRY DERR. Laramie County Community College, Cheyenne, WY. Using an electronic mail (e-mail) listserver to support course-related communications with students.

8:45 BSA 47.4 EYSTER-SMITH, NANCY M. Bentley College, Waltham, MA. World Wide Web: Its role in teaching botany, ecology, and economic botany.

9:00 BSA 47.5 STANLEY, ETHEL D. BioQUEST, Beloit College, WI. Oh Phlox! A Visual Dataset for Undergraduate Biology.

9:15 BSA 47.6 ROMAN, DAMARY (DEE-DEE)* and J. S. SHIPMAN. Bunker Hill Community College, Boston, MA. Teaching teachers to utilize research in biology as a pedagogical method: a case study.

9:30 BSA 47.7 SHIPMAN, J. S.* and MONTY A. KAPLAN* Bunker Hill Community College, Boston, MA. Effectiveness of the card game, "Five Kingdoms Awaken," in helping college students discover interactions among plants and other organisms.

9:45 Break

10:00 BSA 47.8 EZELL, WAYLAND L. Saint Cloud State University, MN. Evaluating introductory botany courses using pre-tests and post-tests.

10:15 BSA 47.9 FARRAR, DONALD R*, SUSAN J ALDWORTH, AND HARRY T HORNER. Iowa State University, Ames. Development of an illustrated booklet and hypertext database of 100 species on the Iowa State University Campus.

10:30 BSA 47.10 LIAO, LOUISE W. Coalition for Education in the Life Sciences (CELS), University of Wisconsin, Madison. What should college students know about plants?

10:45 BSA 47.11 LA DUKE, JOHN. University of North Dakota, Grand Forks. The use of learning summaries in systematic botany instruction: an alternative to exams.

11:00 BSA 47.12 REID, PHILIP D.*, PAUL STEPHENSON, AND DAVID BICKAR. Smith College, Northampton, MA, University of Massachusetts, Amherst, and Smith College, Northampton, MA. A laboratory exercise for measuring changes in protein content and proteolytic activity during programmed cell death of daylily flowers.

11:15 BSA 47.13 REINSVOLD, ROBERT J. University of Northern Colorado, Greeley. Effective strategies to enhance student learning of plant life cycles.

11:30 PM Business Meeting: Teaching section STANLEY, ETHEL, presiding.


POSTER SESSION: New Ideas in Teaching Botany and Undergraduate Biology. Teaching Section. Posters will be available for viewing from 9:00 a.m. until 5 p.m. Authors will be available to discuss their posters from 1:00 p.m. until 3:00 p.m.

BSA 48.1 CAMARA, M.D., H.S. CALLAHAN*, C.T. MELEAR, AND M. PIGLIUCCI. University of Tennessee, Knoxville. Resolving the controversies: a workshop about teaching evolution.

BSA 48.2 HIRREL, MARC*, JOHN S., JR. CHOINSKI, STEVE RUNGE, AND MIKE MORAN. University of Central Arkanasas, Conway, The use of computer workstations in general biology laboratories.

BSA 48.3 IGLICH, ESTHER. Western Maryland College, Westminster. Creative learners: the use of computer technology by students to enhance science study.

BSA 48.4 ROSE, JAMES F. American Association of Amateur Arborists, Columbia, MD. Arbortags: teaching about trees.