title: Adiantumshastense, a new species of maidenhair fern from California.
abstract: A new species of Adiantum is described from California. This species is endemic to northern California and is currently known only from Shasta County. We describe its discovery after first being collected over a century ago and distinguish it from Adiantumjordanii and Adiantumcapillus-veneris. It is evergreen and is sometimes, but not always, associated with limestone. The range of Adiantumshastense Huiet & A.R.Sm., sp. nov., is similar to several other Shasta County endemics that occur in the mesic forests of the Eastern Klamath Range, close to Shasta Lake, on limestone and metasedimentary substrates.
authors: Department of Biology, Duke University, Durham, NC 27707.
authors: Layne
authors: L
authors: Huiet
authors: USDA Forest Service, Shasta-Trinity National Forest, 3644 Avtech Parkway, Redding, CA 96002.
authors: Martin
authors: M
authors: Lenz
authors: USDA Forest Service, Shasta-Trinity National Forest, 3644 Avtech Parkway, Redding, CA 96002.
authors: Julie K
authors: JK
authors: Nelson
authors: Department of Biology, Duke University, Durham, NC 27707.
authors: Kathleen M
authors: KM
authors: Pryer
authors: 1001 Valley Life Sciences Building, # 2465, University Herbarium, University of California, Berkeley, CA 94720-2465.
authors: Alan R
authors: AR
authors: Smith
keywords: Shasta Lake; Shasta snow wreath; maidenhair; new species