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13 September 2017 Taxonomic delimitation of the rare, eastern North American endemic lichen Santessoniella crossophylla (Pannariaceae)
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Abstract

The taxonomic delimitation and generic placement of Santessoniella crossophylla (Old Gray Crosslobes), a cyanolichen endemic to eastern North America, are revisited based on newly generated nrITS and mtSSU sequences. A population from Nova Scotia whose identification as S. crossophylla has been questioned is confirmed as belonging to the species. The monospecific genus Rockefellera is introduced to accommodate lichens ascribable to S. crossophylla in light of molecular results herein presented. The new name honors the Rockefeller family for their century-long support of North American conservation efforts, particularly with respect to national parks.

©Copyright 2016 by The Torrey Botanical Society
James C. Lendemer, Heather B. Stone, and Erin A. Tripp "Taxonomic delimitation of the rare, eastern North American endemic lichen Santessoniella crossophylla (Pannariaceae)," The Journal of the Torrey Botanical Society 144(4), 459-468, (13 September 2017). https://doi.org/10.3159/TORREY-D-16-00009.1
Received: 25 January 2016; Published: 13 September 2017
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