TY - JOUR T1 - A morphometric study of three closely related taxa in the European Isoetes velata complex JF - Botanical Journal of the Linnean Society Y1 - 2005 A1 - Romero, M.I. A1 - Real, C. SP - 459 EP - 464 KW - Endemic plants KW - Habitats directive KW - Isoetaceae KW - Pteridophytes KW - taxonomy KW - Threatened species AB - Isoetes velata A. Braun is an amphibious plant with Mediterranean and Ibero-Atlantic distribution, showing marked morphological variability. Within the same geographical area, closely related restricted-range taxa are also present, including I. velata ssp. asturicense (restricted to mountainous areas of the north-west Iberian Peninsula) and I. boryana (restricted to the southern French Atlantic coast). These related taxa have unclear taxonomy and are both threatened. We performed a morphometric study of specimens of the three taxa. Our results suggest that I. velata ssp. asturicense is better considered as a distinct species, I. asturicense Laínz (Laínz), distinguishable from the other two taxa by mean megaspore length (N ≥ 30) < 360 μm. In contrast, our results do not support consideration of I. boryana as a separate species, and we here propose that this taxon be considered as a variety, I. velata A. Braun var. boryana M.I. Romero & C. Real stat. nov. © 2005 The Linnean Society of London. VL - 148 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-23444461737&partnerID=40&md5=55726fd221d3cb5a1595b8d812d4fa75 IS - 4 N1 - Cited By (since 1996):1Export Date: 11 November 2013Source: Scopus ER -