Abstracts received so far:

1. CESKA, ADOLF* AND OLDRISKA CESKA. - Isoetes minima A.A. Eaton (Isoetaceae) - an overlooked terrestrial quillwort of the Pacific Northwest.
2. CRANFILL, RAYMOND. - Has ecological specialization driven a fundamental phylogenetic split in the Polypodiales?
3. FARRAR, DONALD R.* AND JAMES E. WATKINS. - Morphological differentiation through differential gene silencing in the allotetraploid derivatives of Botrychium lunaria X B. lanceolatum-a partial confirmation of the hypothesis of Werth and Windham.
4. GRANT, JASON R. - The genus Botrychium (Ophioglossaceae) in the interior of Alaska – Herb Wagner’s final conquest.
5. HAUFLER, C. H.1*, T. HILDEBRAND1, P. HAMMOND2, J. P. THERRIEN1, AND C. WALTERS1. - New insights concerning the origin of Polypodium scouleri and its ongoing hybridization with sympatric congeners.
6. HOOT, SARA B.*, W. CARL TAYLOR, AND E. WAGNER. - Species delimitation and hybrid origins in North American Isoëtes based on LEAFY intron data.
7. HOUSTON, HEATHER J.* AND TOM A. RANKER. - Population genetics of Sadleria cyatheoides (Blechnaceae), a Hawaiian endemic.
8. KORALL, PETRA* AND PAUL KENRICK. - Phylogeny of Selaginellaceae based on the plastid gene rbcL: congruence and incongruence with morphology.
9. MEHLTRETER, KLAUS*, JOSé G. GARCíA-FRANCO, AND ALEJANDRO FLORES-PALACIOS. - Microhabitat preferences of trunk epiphytes in a cloud forest of Mexico, with special reference to ferns. [Poster]
10. MEHLTRETER, KLAUS1* AND MóNICA2 PALACIOS-RIOS. - Phenological studies on Acrostichum danaeifolium Langsd. et Fisch. (Pteridaceae, Pteridophyta) on a Caribbean mangrove site of Mexico.
11. NOTIS, CHRISTINE. - Sperm longevity and swimming distance in ferns.
12. SAHASHI, NORIO. - A New Combination of the Ophioglossaceae Using Palynological and Morphological Studies on the Old World.
13. SCHUETTE, S.W.*, A.R. MADEN, D.P. WHITTIER, AND K.S. RENZAGLIA. - Ultrastructure of the spermatozoid of Diphasiastrum digitatum.
14. SMITH, ALAN R.*, HARALD SCHNEIDER, BARBARA S. PARRIS, CHRISTOPHER H. HAUFLER, TOM A. RANKER, JAMES P. THERRIEN, AND JENNIFER OTT-GEIGER. - Phylogeny of Grammitidaceae and Polypodiaceae inferred from two large data sets: rbcL and morphology.
15. S‡NCHEZ-BARACALDO, PATRICIA. - A recent radiation of Neotropical fern genera in p‡ramo ecosystems.
16. TAYLOR, W. CARL* AND SARA B. HOOT. - Evolutionary relationships and biogeography of Isoetesbased on nucleotide sequences.
17. THERRIEN, JAMES P.* AND CHRISTOPHER H. HAUFLER. - Phylogeny and biogeography of Selaginella subg. Tetragonostachys based on nuclear ribosomal ITS sequence data.
18. THERRIEN, JAMES P.*, MICHAEL D. WINDHAM, AND CHRISTOPHER H. HAUFLER. - Hybridization and putative allotetraploid speciation in Selaginella subg. Tetragonostachys.
19. WATKINS, JR., JAMES E.* AND DONALD R. FARRAR. - Biosystematic investigation of the rare, disjunct, rockhouse fern Thelypteris pilosa var. alabamensis (Thelypteridaceae: Stegnogramma).
20. WILLISTON, PATRICK* AND PAULA BARTEMUCCI. - The Ophioglossaceae of British Columbia. [Poster]