The status, distribution, and identification of Georgia Quillwort (Isoetes georgiana; Isoetaceae)

Although recently described from only a single population, Isoetes georgiana is now known in at least 12 additional locations on the Georgia coastal plain. The distribution and habitat characteristics of these populations are described. Field and SEM examinations are employed to provide elaboration of the limited morphological and ecological information published to date. Speculation on the probable allopolypoid origin of Isoetes georgiana also is offered. It remains a locally distributed and rare species which may qualify for listing under the U.S. Endangered Species Act.