WEDNESDAY AFTERNOON, 5 AUGUST 1998


SESSION 49

Presiding: HARRIS, ELIZABETH M. and KAMPNY, CRISTINE M.

SYMPOSIUM: Heterochrony in plants. Developmental and Structural section. Organized by HARRIS, ELIZABETH M. Botany Department, Eastern Illinois University, Charleston, IL 61920. 217 581-6608, e-mail: cfemh@eiu.edu; and KAMPNY, CHRISTINE M., Botany Department, University of Florida, Gainesville, FL 32611, 352/335-6343, e-mail: cmk@flmnh.ufl.edu.

1:25 BSA 49.1 KAMPNY, CHRISTINE M. University of Florida, Gainesville. Introduction.

1:30 BSA 49.2 CHRISTINE M. KAMPNY AND HARRIS, ELIZABETH M.* University of Florida, Gainesville, and Eastern Illinois University, Charleston. Heterochrony: the basis of floral shape evolution.

2:00 BSA 49.3 FRIEDMAN, WILLIAM E.* AND JEFFREY S. CARMICHAEL. University of Colorado, Boulder and University of North Dakota, Grand Forks. Heterochrony and developmental innovation: evolution of female gametophyte ontogenies in seed plants.

2:30 BSA 49.4 POETHIG, R. SCOTT. University of Pennsylvania, Philadelphia. Timing is everything: genetic and temporal regulation of leaf identity.

3:00 BREAK

3:15 BSA 49..5 DEMASON, DARLEEN A.* AND PHILIP J. VILLANI. University of California, Riverside. Roles of the Af and Tl genes in pea leaf development: homeosis or heterochrony?

3:45 BSA 49.6 STEIN, WILLIAM* AND JAMES BOYER. SUNY-Binghamton, NY. Beyond heterochrony: assessing the logic of developmental systems underlying the evolution of primitive vascular plant form.

4:15 BSA 49.7 KAMPNY, CHRISTINE M. University of Florida, Gainesville. Symposium summary and discussion.


SESSION 50

Presiding: DIGGLE, PAMELA K., Department of Environmental, Population and Organismic Biology, University of Colorado, Boulder, CO 80390-0334, 303/492-4860, email: diggle@spot.colorado.edu.

CONTRIBUTED PAPERS: Community Ecology, Competition, and Plant-animal Interactions. Ecological section.

1:00 BSA 50.1 DIGGLE, PAMELA K. University of Colorado, Boulder. Does preformation limit phenotypic plasticity? Experimental analyses of the alpine perennial Polygonum viviparum (Polygonaceae).

1:15 BSA 50.2 RONSHEIM, MARGARET L.*, ANDERSON SARAH E., AND KRUEGER, EILEEN L. Vassar College, Poughkeepsie, NY. The effects of mycorrhizae and soil pathogens in intraspecific competition among asexual propagules of Allium vineale.

1:30 BSA 50.3 BASKIN, JERRY M.* AND BASKIN, CAROL C. University of Kentucky, Lexington. Vegetation of limestone and dolomite glades in the Ozarks and Midwest Regions of the United States: A review.

1:45 BSA 50.4 PENDLETON, ROSEMARY L.*, PENDLETON, BURTON K., AND WARREN, STEVEN D. Rocky Mountain Research Station, Provo, UT and U.S. Army Construction Engineering Laboratory, Champaign, IL. Response of blackbrush (Coleogyne ramosissima) seedlings to inoculation with arbuscular mycorrhizal fungi.

2:00 BSA 50.5 SCHENK, H. JOCHEN* AND HOLZAPFEL, CLAUS. National Center for Ecological Analysis and Synthesis, Santa Barbara, CA, and University of California Santa Barbara. Directional, spatial patterns in a desert plant community.

2:15 Break

2:30 BSA 50.6 HEDBERG, ANDREW M., BOROWICZ, VICTORIA A., WHITE, DARRELL, AND ARMSTRONG*, JOSEPH E. Illinois State University, Normal. Interactions between the hemiparasite Pedicularis canadensis and other prairie plants.

2:45 BSA 50.7 FLETCHER, TARA S.* AND VANKAT, JOHN L. Miami University, Oxford, OH. Understory species as keys to defining old-growth forests of southcentral Alaska.

3:00 BSA 50.8 ROBISON, SCOTT*, KENNEDY-SUTHERLAND, ELAINE, AND MCCARTHY, BRIAN. Ohio University, Athens. An assessment of understory light environments using hemispherical photography following prescribed burn treatments within mature second-growth oak-hickory forests in southern Ohio.

3:15 BSA 50.9 DEVALL, MARGARET S. Center for Bottomland Hardwood Research, Stoneville, MS. Dendroecological analysis of cypress Taxodium distichum and tupelo gum Nyssa aquatica in Cat Island Swamp in southeastern Louisiana.

3:30 BSA 50.10 ABRAHAMSON, WARREN G.* AND MELIKA, GEORGE. Bucknell University, Lewisburg, PA and Ministry of Agriculture of Hungary, Kszeg. Gall-inducing insects (Cynipinae) provide insights into plant systematic relationships.


SESSION 51

Presiding: MORIN, NANCY R.

SYMPOSIUM: Plants on Demand: Research using living collections in botanical gardens and arboreta. Systematics section; joint session with the American Association of Botanical Gardens and Arboreta (AABGA). Organized by MORIN, NANCY R., AABGA, 351 Longwood Road, Kennett Square, PA 19248, 610/925-2500, email: morin@mobot.org.

1:00 BSA 51.1 MORIN, NANCY R. American Association of Botanical Gardens and Arboreta, Kennett Square, PA.. Overview of living collections in North American botanical gardens and arboreta.

1:25 BSA 51.2 DUNN, CHRISTOPHER P. The Morton Arboretum,Chicago, IL. Botanic gardens as centers for plant conservation.

1:50 BSA 51.3 FAY, MICHAEL F*., MICHAEL MAUNDER, and MARK W. CHASE. Royal Botanic Gardens, Kew. Collections of living plants in botanic gardens and conservation studies—Genetic fingerprinting comes of age.

2:15 Break

2:30 BSA 51.4 HAVENS, KAYRI* and MARLIN BOWLES. Chicago Botanic Garden and The Morton Arboretum, IL. Implications of genetic analyses for rare plant restoration projects.

2:55 BSA 51.5 PORTER, J. MARK Rancho Santa Ana Botanic Garden, Claremont, CA. The Importance of living and preserved collections for broad and synthetic systematic research at botanical gardens: Examples from Polemoniaceae.

3:20 BSA 51.6 BARABE, DENIS. Jardin botanique de Montreal, PQ. Morphological and Systematic studies in Begonia and Araceae using collections at the Montreal Botanical Garden.

3:45 Break

4:00 BSA 51.7 WILKEN, DIETER H. Santa Barbara Botanic Garden, CA. The role of living collections in assessing plant reproductive biology.

4:25 BSA 51.8 KORNEGAY, JULIA. Fairchild Tropical Garden, Miami, FL. Living collections for comparative research and as germplasm collections: The special value of tropical botanical gardens.


SESSION 52

CONTRIBUTED PAPERS: Fabaceae, Breeding systems, and genetic diversity. Systematics section; joint session with the American Society of Plant Taxonomists session 12.


SESSION 53

CONTRIBUTED PAPERS: Molecular. Systematics section; joint session with the American Society of Plant Taxonomists session 13.


WEDNESDAY EVENING, 5 AUGUST 1998

6:00 PM MIXER: Botanical Society of America.

7:00 PM ANNUAL BANQUET FOR ALL BOTANISTS (ticket required), Botanical Society of America.


THURSDAY MORNING, 6 AUGUST 1998

7:30-9:30 AM BSA EXECUTIVE COUNCIL MEETING AND BREAKFAST. BASKIN, CAROL C., presiding.