Observation 50493: Xanthoparmelia chlorochroa (Tuck.) Hale

Locality: Green Mountain Reservoir, 15 mi southeast of Kremmling, White River National Forest, Colorado, USA, el. 7,400 ft

Identification: A soil-inhabiting Xanthoparmelia living in the dry, intermontane, high country of Colorado. Species to consider include the following (characterizations from Nash, vol.2, p.569):
chlorochroa (thallus strongly convoluted, free-living)
wyomingica (thallus compact, often densely imbricate, … lobes short and revolute at tips; alpine).
Photos by Sharnoff illustrate the two species. The present photos seem to be a better match for Xanthoparmelia chlorochroa, while MO Observation 48159 from Rocky Mountain National Park a short distance to the east, and at a much higher elevation, matches Xanthoparmelia wyomingica.

Sharnoff’s Xanthoparmelia chlorochroa gallery
Sharnoff’s Xanthoparmelia wyomingica gallery



Proposed Names

61% (2)
Eye3 Eyes3
Used references: Nash, vol.2, p.569

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-08-16 21:15:41 CDT (-0400)
Last modified: 2010-08-17 01:45:50 CDT (-0400)
Viewed: 115 times, last viewed: 2018-04-12 15:05:54 CDT (-0400)
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