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Issue: Vol. 42 No. 1 (2012)
Type: Article
Published: 2012-01-30
DOI: 10.11646/phytotaxa.42.1.7
Page range: 51–61
Abstract views: 19
PDF downloaded: 29

Navarretia furnissii (Polemoniaceae), a new diploid species from the intermountain western United States distinguished from tetraploid Navarretia saximontana

Department of Biology and M.L. Bean Museum, Brigham Young University, Provo, Utah 84602, USA
Department of Biology and M.L. Bean Museum, Brigham Young University, Provo, Utah 84602, USA
Department of Biology and M.L. Bean Museum, Brigham Young University, Provo, Utah 84602, USA
Department of Biology and M.L. Bean Museum, Brigham Young University, Provo, Utah 84602, USA
Eudicots cryptic species polyploidy Pistillata species delimitation taxonomy unified species concept

Abstract

Morphological and DNA-based characters distinguish a new diploid species centered in the Intermountain Region of the western United States, Navarretia furnissii, from N. saximontana, which is tetraploid. The two species are reciprocally monophyletic in analyses of chloroplast DNA sequences and nrDNA ITS sequences. Navarretia furnissii, presently known from Utah, Idaho, Wyoming, Montana, and Colorado, is distinguished morphologically from N. saximontana by a smaller corolla, greater frequency of pronged calyx lobes, and fewer seeds. A key to Navarretia of the Intermountain Region is presented.