North American material of the sorediate Punctelia species has been examined. The presence of four species, Punctelia borreri, P. missouriensis, P. perreticulata, and P. stictica can be confirmed. Specimens named Punctelia subrudecta generally belong to P. perreticulata. Neither of the species most common in Europe, P. subrudecta and P. ulophylla, could be confirmed as occurring in North America.
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1 June 2003
A New Perspective on the Sorediate Punctelia (Parmeliaceae) Species of North America
André Aptroot
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The Bryologist
Vol. 106 • No. 2
Summer 2003
Vol. 106 • No. 2
Summer 2003