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Type: Article
Published: 2016-04-20
Page range: 249–260
Abstract views: 19
PDF downloaded: 13

Navarretia crystallina and N. miwukensis (Polemoniaceae): new species endemic to California with affinity for soils derived from pyroclastic deposits

Department of Biology and M.L. Bean Life Science Museum, Brigham Young University, Provo, Utah 84602, U.S.A.
111 Roble Road, Oakland, California 94618, U.S.A.
Department of Biology and M.L. Bean Life Science Museum, Brigham Young University, Provo, Utah 84602, U.S.A.
Department of Biology and M.L. Bean Life Science Museum, Brigham Young University, Provo, Utah 84602, U.S.A.
Department of Biology and M.L. Bean Life Science Museum, Brigham Young University, Provo, Utah 84602, U.S.A.
edaphic endemism identification key taxonomy

Abstract

Two species endemic to California in the western United States, Navarretia crystallina and N. miwukensis, are here described. Both species occur on soils derived from pyroclastic flows. N. crystallina is distributed more widely, generally at higher elevations, and occurs predominantly to the north and east of N. miwukensis. Though similar in habit to N. divaricata and N. prolifera, N. crystallina and N. miwukensis can be distinguished consistently from both of these species by inflorescence structure, bract lobing, and flower size, and from each other by bract and calyx lobe shape, inflorescence indumentum, and stamen insertion. The species are also distinguishable by DNA sequences.