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1 September 2007 Subspecies of Rosa nutkana and R. woodsii (Rosaceae) in Western North America
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Three subspecies of Rosa nutkana C. Presl and five of R. woodsii Lindley are recognized in western Canada and the United States, including four changes in combination and/or status: Rosa nutkana subsp. melina (Greene) W. H. Lewis & Ertter, R. woodsii subsp. arizonica (Rydberg) W. H. Lewis & Ertter, R. woodsii subsp. manca (Greene) W. H. Lewis & Ertter, and R. woodsii subsp. gratissima (Greene) W. H. Lewis & Ertter. Rosa nutkana subsp. melina and R. woodsii subsp. manca occur at high elevations of the southern Rocky Mountains and Colorado Plateau of Colorado and Utah with outlying populations in Arizona, Idaho, New Mexico, and Wyoming; R. woodsii subsp. arizonica is found at lower elevations of Arizona and the Colorado Plateau; and R. woodsii subsp. gratissima occurs in the mountains surrounding the Mojave Desert and southern Great Basin of California and Nevada, with its variety glabrata (Parish) D. Cole confined to the San Bernardino Mountains of California. Synonyms are provided for appropriate subspecies, 14 lectotypes and one neotype are designated here, and selected exsiccatae are given for newly recognized subspecies. The following names are lectotypified: Rosa bakeri Rydberg, nom. illeg., R. californica Chamisso & Schlechtendal var. ultramontana S. Watson, R. deserta Lunell, R. fendleri Crépin, R. macounii Greene, R. maximiliani Nees, R. megalantha G. N. Jones, R. neomexicana Cockerell, R. nutkana var. alta Suksdorf, R. nutkana var. hispida Fernald, R. nutkana var. pallida Suksdorf, R. rainierensis G. N. Jones, R. spaldingii Crépin ex Rydberg, and R. subnuda Lunell. One neotype is designated: Rosa woodsii Lindley.

Walter H. Lewis and Barbara Ertter "Subspecies of Rosa nutkana and R. woodsii (Rosaceae) in Western North America," Novon: A Journal for Botanical Nomenclature 17(3), 341-353, (1 September 2007).[341:SORNAR]2.0.CO;2
Published: 1 September 2007

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