TY - JOUR T1 - A re-evaluation of Isoetes savatieri franchet in Argentina and Chile JF - American Fern Journal Y1 - 2003 A1 - Hickey, R.J. A1 - Macluf, C. A1 - Taylor, W.C. SP - 126 EP - 136 AB - Isoetes suvutieri has traditionally been interpreted as being a uniform aquatic ranging from the southernmost regions of South America to the central Andes of Chile and Argentina. An examination of herbarium material supports the recognition of two taxa, a southern I. savatieri and a more northern I. chubutiana, from central Chile and Argentina. The latter taxon is hexaploid and described here as a new species. The morphology of these species suggest that they are sister species resulting from divergence following a polyploidy event. These species, and several other species pairs, provide the best and, to date, only examples of allopatric divergence in polyploid Isoetes. VL - 93 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-0141676348&partnerID=40&md5=323242638fd59ed4fe04b166c7422ad8 IS - 3 N1 - Cited By (since 1996):9Export Date: 11 November 2013Source: Scopus ER -