The lichen Punctelia semansiana, common and widely distributed in North America and differing from P. hypoleucites by conidial size and substrate ecology, is identical to P. graminicola (B. de Lesd.) Egan, comb. nov. Authentic material of the older epithet, thought to have been destroyed but recently discovered at New Mexico's College of Santa Fe, permits the nomenclatural correction.
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1 June 2003
What is the Lichen Parmelia graminicola B. de Lesd.?
Robert S. Egan
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The Bryologist
Vol. 106 • No. 2
Summer 2003
Vol. 106 • No. 2
Summer 2003