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9 June 2015 Candelariella clarkii and Lecidea hoganii: two lichen species new to science from White Rocks Open Space, City of Boulder, Colorado
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Abstract

Two new species are described from vouchers collected as part of an intensive lichen inventory of Fox Hills Sandstone outcrops in an open space preserve within the city limits of Boulder, Colorado. Candelariella clarkii is characterized by its cryptolecanorine apothecia, chartreuse areolate thallus, and 8-spored asci. Lecidea hoganii is a member of the L. auriculata morphological group characterized by a thick white chalky thallus, pink pigments in the hymenium, and absence of secondary compounds. We provide IUCN conservation assessments for both new species, which should be considered critically endangered. The discovery of two species new to science in a relatively densely populated region of North America illustrates the ecological relevance of small of patches of native habitat, which are certain to become even more important in the future.

Copyright ©2015 by The American Bryological and Lichenological Society, Inc.
Erin A. Tripp and James C. Lendemer "Candelariella clarkii and Lecidea hoganii: two lichen species new to science from White Rocks Open Space, City of Boulder, Colorado," The Bryologist 118(2), (9 June 2015). https://doi.org/10.1639/0007-2745-118.2.154
Received: 20 February 2015; Accepted: 1 April 2015; Published: 9 June 2015
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