Presiding: LUTZONI, FRANCOIS.

SYMPOSIUM: Bridging the gap between phylogeny and the classification of lichen-forming Ascomycetes. Part I. Bryological and Lichenological section. Joint session with ABLS session 6 and with the Canadian Botanical Association (CBA/ABC). Organized by LUTZONI, FRANCOIS, Field Museum of Natural History,Roosevelt Road at Lake Shore Drive, Chicago, IL 60605-2496.

8:00 BSA 63.1 LUTZONI, FRANÇOIS. Field Museum of Natural History, Chicago, IL. Introduction to the symposium.

8:05 BSA 63.2 HIBBETT, DAVID S.* and DONOGHUE, MICHAEL J. Harvard University, Cambridge, MA. Integrating phylogenetic hypotheses and classifications in fungi.

8:35 BSA 63.3 TAYLOR, JOHN W. University of California, Berkeley. Sexual and asexual Ascomycota: evolution and classification.

9:05 BSA 63.4 NIMIS, PIER L. University of Trieste, Italy. The inflation of generic names in modern lichenology.

9:35 Discusion

9:50 Recess

10:05 BSA 63.5 TIBELL, LEIF. Uppsala University, Sweden. The classification of calicioid lichens and fungi: morphological evidence, anamorph data and sequences of the ITS1-5.8S-ITS2 region and the 18S rDNA.

10:35 BSA 63.6 GRUBE, MARTIN* and MATZER, MARIO. Karl-Franzens-University, Austria. Classification and phylogeny of the Arthoniales.

11:05 BSA 63.7 RAMBOLD, GERHARD*, FRIEDL, THOMAS and BECK, ANDREAS. University of Munchen and Univesity of Bayreuth, Germany. Photobionts in lichens: possible indicators of phylogenetic relationships in Lecanorales?

11:35 - 11:50 Discussion

Presiding: THOMAS, JUDITH F. Department of Botany, North Carolina State University, Raleigh, NC 27695-7618 (919/515-2778).

CONTRIBUTED PAPERS: Flowers and inflorescences. Developmental and Structural Section, BSA, and Structure and Development Section, CBA/ABC.

8:30 BSA 64.1 FOLEY, CAROLINE M. and THOMAS, JUDITH F.* North Carolina State University, Raleigh. Photoperiodic alteration of inflorescence commitment and development in Glycine max (L.) Merr. 'Ransom'.

8:45 BSA 64.2 BRADY, MELINDA S.*, STEIN, WILLIAM, and CRANE, PETER R. University of Chicago, IL, SUNY at Binghamton, NY, and The Field Museum, Chicago, IL. Exploring patterns in floral morphology: Mathematical modeling of floral development using an inhibitory morphogen and meristematic growth parameters.

9:00 BSA 64.3 WILSON, CAROL A. University of California, Berkeley. Does Iris tenax var. gormanii display normal ovule development?

9:15 BSA 64.4 RONSE DECRAENE, LOUIS P.* and SMETS, ERIK F. Katholieke Universiteit Leuven, Heverlee, Belgium. Floral development and anatomy of Carica papaya - clues to a specialized pollination syndrome?

9:30 BSA 64.5 MACINTYRE, JUDY* and LACROIX, CHRISTIAN. University of Prince Edward Island, Charlottetown. The shape of meristematic cells corresponds to a variable homeotic replacement of stamens with petal/stamen intermediates in double flowers of Hibiscus rosa-sinensis var. rosa-sinensis L.

9:45 BSA 64.6 LI, PING* and JOHNSTON, MARK O. Dalhousie University, Halifax, NS. Anther meiosis terminates at one of three discrete time classes in diverse angiosperm species.

10:00 Recess

10:15 BSA 64.7 LITT, AMY. New York Botanical Garden, Bronx. The single fertile stamen of the Vochysiaceae: Derived four times or once?

10:30 BSA 64.8 ROZEFELDS, ANDREW C.* and DRINNAN, ANDREW N. Tasmanian Herbarium, Hobart, Tasmania, and University of Melbourne, Parkville, Victoria, Australia. Ontogeny and floral diversity of staminate flowers in the southern beeches (Nothofagus).

10:45 BSA 64.9 ROZEFELDS, ANDREW C.* and DRINNAN, ANDREW N. Tasmanian Herbarium, Hobart, Tasmania, and University of Melbourne, Parkville, Victoria, Australia. Pistillate inflorescence architecture and morphology of the southern beeches (Nothofagus).

11:00 BSA 64.10 DOUST, ANDREW N. University of Melbourne, Parkville, Victoria, Australia. Variability and pattern in the flowers of the Winteraceae (Magnoliidae).

11:15 BSA 64.11 MIKESELL, JAN E. Gettysburg College, Gettysburg, PA. Influence of excision on inflorescence development in Phytolacca americana L. (Phytolaccaceae).

11:30 BSA 64.12 KORPELAINEN, HELENA. University of Helsinki, Finland. Labile sex expression: Adaptation and not only aberration.

11:45 BSA 64.13 DAVIS, ARTHUR R. University of Saskatchewan, Saskatoon. And the nectaries make two more...eight sets of floral parts in the wild-type flower of Arabidopsis thaliana.

Presiding: PIGLIUCCI, MASSIMO and SCHLICHTING, CARL.

SYMPOSIUM: Genetics of adaptive phenotypic plasticity. Part I. Ecological and Genetics sections, BSA. Joint session with Canadian Botanical Association (CBA/ABC). Organized by PIGLIUCCI, MASSIMO, Departments of Botany and Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996 (423/974-6221) <pigliucci@utk.edu>; and SCHLICHTING, CARL, Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT 06269 (860/486-4056) <schlicht@uconn.edu>.

8:30 BSA 65.1 PIGLIUCCI, MASSIMO and SCHLICHTING, CARL. University of Tennessee, Knoxville and University of Connecticut, Storrs. Introduction.

8:45 BSA 65.2 PIGLIUCCI, MASSIMO, University of Tennessee, Knoxville. Plasticity genes, adaptive plasticity, and what do they have to do with each other....

9:15 BSA 65.3 DORN, LISA and SCHMITT, JOHANNA. Brown University, Providence, RI. Genetic basis of phenotypic plasticity: Do plasticity genes exist or not?

9:45 BSA 65.4 CALLAHAN, HILLARY, University of Tennessee, Knoxville. Light signals and adaptive phenotypic plasticity in wild populations of Arabidopsis thaliana.

10:15 Recess

10:45 BSA 65.5 LECHOWICZ, MARTIN* and LEI, THOMAS. McGill University, Montreal, PQ and Virginia Polytechnic Institute and State University, Blacksburg. Functional ecology of a shade to sun transition in forest maples: Adaptive plasticity.

11:15 BSA 65.6 McCONNAUGHAY, KELLY, Bradley University, Peoria, IL. Developmental and physiological contributions to allocational plasticity in plants.

Presiding: WHEELER, ELISABETH A., Department of Wood and Paper Science, Box 8005, North Carolina State University, Raleigh, NC 27695-8005 (919/515-5728) <xylem@unity.ncsu.edu>.

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

8:15 BSA 66.1 CHANEY, DAN S.*, DIMICHELE, WILLIAM A., MAMAY, SERGIUS H., HOOK, ROBERT W., and NELSON, W. JOHN. Smithsonian Institution, Washington, DC, and Illinois State Geological Survey, Champaign. A new flora from the evaporite-bearing Blaine Formation (Pease River Group, Lower Permian) of King County, Texas.

8:30 BSA 66.2 BERTRAM, KARLA A.*, PIGG, KATHLEEN B., SCHORN, HOWARD E., and ERWIN, DIANE. Arizona State University, Tempe, and University of California, Berkeley. Middle Miocene flora from the Virgin Valley, northwestern Nevada, USA.

8:45 BSA 66.3 GRAHAM, ALAN. Kent State University, OH. New evidence on the origin of the north-temperate element in the northern Latin American biota.

9:00 BSA 66.4 SCHORN, HOWARD E.*, ERWIN, DIANE M., and GOOCH, NANCY L. University of California, Berkeley. The paleoecological significance of foliated axes of spruce (Picea A. Dietrich, Pinaceae) in the Neogene of Oregon.

9:15 Recess

9:30 BSA 66.5 KNAUS, MARGARET J. University of Wisconsin, Eau Claire. A new combination of Genselia and new insights into possible developmental pathways of early Carboniferous photosynthetic units.

9:45 BSA 66.6 DUNN, KRISTI A., UPCHURCH, GARLAND R., JR.*, MCLEAN, ROBERT J.C., and FOLK, ROBERT L. Southwest Texas State University, San Marcos, and University of Texas, Austin. Biofilm enhancement of leaf fossilization potential: experimental evidence.

10:00 BSA 66.7 UPCHURCH, GARLAND R., JR.*, MARINO, BRUNO D., MONE, W.E., and MCELROY, MICHAEL B. Southwest Texas State University, San Marcos, and Harvard University, Cambridge, MA. Carbon isotope ratios in extant and fossil plant cuticle.

10:15 BSA 66.8 MEDLYN, DAVID A.* and TIDWELL, WILLIAM D. Utah State University, Logan, and Brigham Young University, Provo, UT. A generic and bibliographic review of the Mesozoic coniferous woods of North America.

10:30 BSA 66.9 WHEELER, ELISABETH A.* and LEHMAN, THOMAS M. North Carolina State University, Raleigh, and Texas Tech University, Lubbock. Cretaceous-Paleocene wood of Big Bend National Park, Texas.

10:45 Recess

11:00 INFORMAL PRESENTATIONS

Presiding: JOHANSEN, JEFFREY R., Department of Biology, John Carroll University, University Heights, OH 44118 (216/397-4487).

CONTRIBUTED PAPERS: Phycology. Phycological section. Joint session with the Canadian Botanical Association (CBA/ABC).

8:30 BSA 67.1 JOHANSEN, JEFFREY R.*, ST. CLAIR, LARRY L., FLECHTNER, VALERIE R., EVANS, DAVID and WARREN, STEVE. John Carroll University, Brigham Young University,Provo, UT. University of Arkansas,Fayetteville, AR, and U.S. Army Construction Engineering Laboratory. The use of cyanobacterial amendments to enhance recovery of disturbed cryptogamic crusts in high desert sites.

8:45 BSA 67.2 NG, RANIER A.*, FLECHTNER, VALERIE R. and JOHANSEN, JEFFREY R. John Carroll University, University Heights, OH. A comparative study of the algae from burned, trampled, and undisturbed plots in a high desert site at Dugway Proving Ground, Utah.

9:00 BSA 67.3 PAYNE, MICHAEL C.*, JOHANSEN, JEFFREY R., BALCZON, JOSEPH M. and FLECHTNER, VALERIE R. John Carroll University University Heights, OH. The effects of trampling disturbance on the soil algal communities at Wedge Overlook, San Rafael Swell, Utah.

9:15 BSA 67.4 BRADLEY, DEBBIE*, FLECHTNER, VALERIE R. and JOHANSEN, JEFFREY R. John Carroll University, University Heights, OH. Evaluation of the effect of trampling on the abundance and diversity of cyanobacteria in desert soils.

9:30 BSA 67.5 FLECHTNER, VALERIE R*., JOHANSEN, JEFFREY R. and CLARK, WILLIAM. John Carroll University, University Heights, OH and The Orma J. Smith Museum of Natural History. Floristic analysis of the algal populations in desert soil from the Central Desert of Baja California, Mexico.

9:45 BSA 67.6 STARKS, WILLIAM W.*, HURLEY, DAVID L., SATTLER, AIRLIE and WEE, JAMES L. Loyola University, New Orleans, LA. Phylogenetic analyses of Synura section Synura (Synuraphyceae) using ITS/5.8s sequences and scale morphology.

10:00 BSA 67.7 DUNNE, LORI A.*, HURLEY, DAVID L., SATTLER, AIRLIE and WEE, JAMES L. Loyola University, New Orleans, LA. Phylogenetic analyses of Synura petersenii species complex (Synuraphyceae) using ITS/5.8s sequences and scale morphology

10:15 BSA 67.8 MILLER, TIMOTHY J.*, JOHANSEN, JEFFREY R. and FLECHTNER, VALERIE R. John Carroll University, University Heights, OH. Characterization of the cyanobacterial nifH gene and its potential use in phylogenetic analysis.

10:30 Recess

10:45 BSA 67.9 CAMPEAU, STEPHANE, HEQUETTE, ARNAUD and PIENITZ, REINHARD. Université Laval, Sainte Foy, PQ. Diatoms of the southern Beaufort Sea coasts and their relationship to sea level and depositional environments.

11:00 BSA 67.10 SGRO, GERALD V. and JOHANSEN, JEFFREY R. John Carroll University, University Heights, OH. Canonical correspondence analysis of diatom communities from Lake Erie estuaries in Ohio.

11:15 BSA 67.11 DODGE, ANESSA J.* and JOHANSEN, JEFFREY R. John Carroll University, University Heights, OH. Diatoms of the Lake Erie freshwater estuary at Arcola Creek, Ohio.

11:30 BSA 67.12 SRAY, JULIE C.*, BALCZON, JOSEPH M. and JOHANSEN, JEFFREY R. John Carroll University, University Heights, OH. The diatom flora of sandspit ponds of Presque Isle State Park, Pennsylvania.

CONTRIBUTED PAPERS: General. Systematics section. Joint session with ASPT session 14 and with the Canadian Botanical Association (CBA/ABC).

CONTRIBUTED PAPERS: General. Systematics section. Joint session with ASPT session 15 and with the Canadian Botanical Association (CBA/ABC).