The new lichenized species Sphaerophorus venerabilis (Sphaerophoraceae, Lecanorales, Ascomycota) is described and the long confusion with S. tuckermanii clarified. The names S. tuckermanii and S. globiferus var. gracilis Müll. Arg. are lectotypified, and a key to the species of Sphaerophorus in western North America is presented.
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The Bryologist
Vol. 112 • No. 2
Summer 2009
Vol. 112 • No. 2
Summer 2009