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Acroscyphus (Caliciaceae) in North America

2003; American Bryological and Lichenological Society; Volume: 106; Issue: 3 Linguagem: Inglês

10.1639/10

1938-4378

Suzanne Joneson, Katherine Glew,

Botany, Ecology, and Taxonomy Studies

Acroscyphus sphaerophoroides Lév. is reported new to Washington State (U.S.A.) Previously this rare and monotypic fruticose lichen has been reported from North America only in Veracruz, Mexico and British Columbia, Canada. We are unable to verify the collection from Mexico at this time, however it's locality near Perote in the highlands of southern Mexico fits with a southern extension of boreal forests down the cordilleras of western North America, and an overall disjunct worldwide distribution from high exposed regions of China, Japan, Peru, Patagonia, and South Africa. Listing of this species as critically imperiled is strongly recommended for Washington State.