This paper treats four North American yellow or orange sorediate species, C. chrysodeta, C. citrina, C. tominii, and C. xanthostigmoidea. These species are mostly sterile and sorediate and usually occur on rocks and soil. Other related non-American species, C. proteus, C. soropelta, and C. xantholyta are also discussed in relation to the treated species. Descriptions, distribution maps, and color illustrations are provided for the treated taxa.
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1 March 2001
The Caloplaca citrina Group in North and Central America
Clifford M. Wetmore
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The Bryologist
Vol. 104 • No. 1
Spring 2001
Vol. 104 • No. 1
Spring 2001