Two new species of Penstemon (Scrophulariaceae: sect. Saccanthera) from Nevada, U.S.A.
Two Nevada species are described here for the first time: Penstemon tiehmii N. H. Holmgren, which is endemic to Mount Lewis of the Shoshone Range in Lander County; and Penstemon rhizomatosus N. H. Holmgren, which is endemic to the central Schell Creek Range in White Pine County. They both belong to section Saccanthera and are closely related to P. kingii S. Watson, a Great Basin endemic of valley sagebrush habitats. Both new species are talus plants of higher elevations and differ from P. kingii principally in their rhizomatous habit, petiolate leaves, and pubescence of shorter hairs.
Key wordsScrophulariaceae Penstemon section Saccanthera Nevada
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- Atwood, N. D. & S. L. Welsh. 1989. An Erigeron from Nevada and a Penstemon from Idaho. Great Basin Naturalist 48: 496–498.Google Scholar
- Betancourt, J. L., T. R. Van Devender, & P. S. Martin, editors. 1990. Packrat middens: the last 40 000 years of biotic change. Univ. Arizona Press, Tucson.Google Scholar
- Holmgren, N. H. 1984. Penstemon. Pages 370–455. In: A. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren. Intermountain flora: vascular plants of the Intermountain West, U.S.A. Vol. 4, New York Botanical Garden, Bronx.Google Scholar
- Neese, E. & S. L. Welsh. 1983. A new species of Penstemon (Scrophulariaceae) from the Uinta Basin, Utah. Great Basin Naturalist 43: 429–431.Google Scholar
- Tiehm, A. 1996. Nevada vascular plant types and their collectors. Mem. New York Bot. Gard. 77: 1–104.Google Scholar
- Welsh, S. L. 1993 . New taxa and new nomenclatural combinations in the Utah flora. Rhodora 95: 414–415.Google Scholar