TY - JOUR T1 - Analysis of morphological and anatomical characteristics of Isoetes using isoetes tennesseensis JF - Brittonia Y1 - 2005 A1 - Budke, J.M. A1 - Hickey, R.J. A1 - Heafner, K.D. SP - 167 EP - 182 KW - Dimorphism KW - Isoetes KW - Lycopod KW - Morphological characters KW - Pteridophyte AB - The three known populations of Isoetes tennesseensis were examined to document and analyze their morphological and anatomical characters. Characters examined included velum coverage, lacunae, leaf form and size, sporangial wall cells, and ligule and labium morphology. Three types of morphological patterns were found: stable, variable, and dimorphic. The discovery of dimorphism between mega- and microsporophylls for velum coverage, velum length, sporangium size, and ligule shape is of particular interest. This study presents a model for future work designed to complement current species descriptions and it establishes a baseline for morphological comparisons with other Isoetes. © 2005, by The New York Botanical Garden Press. VL - 57 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-21744447722&partnerID=40&md5=10d5e4181461bf404f341ea4a32c4740 IS - 2 N1 - Cited By (since 1996):3Export Date: 11 November 2013Source: Scopus ER -