Collection location: Lost Mine Trail, Big Bend National Park, Brewster Co., Texas, USA [Click for map]
Locality: 29°16’28.21"N, 103°17’12.18"W, el. 1745-2170 m
Substrate and habitat: Forming large and showy, but infrequently encountered, bright tomato-red patches and even red-orange swaths a few meters long on upper elevation boulders, rock spires and canyon walls, overlooking open woodlands of piñon, juniper, and oak.
Identification: Caloplaca texana was described as a new species by Wetmore and Kärnefelt in 1998. The type locality is the base of steep cliffs on the north side of Emory Peak, el. 6,000 feet. CNALH notes on Caloplaca texana summarize it as follows: “Caloplaca texana is characterized mainly by the abundant phyllidia in the central portions and the lighter pigmented marginal lobe tips. The lobes are fairly short with irregular branching with broadening tips.” These characters are evident in the present photos.
Wetmore and Kärnefelt, The Lobate and Subfruticose Species of Caloplaca in North and Central America, The Bryologist, Vol. 101, No. 2 (Summer, 1998), pp. 230-255
Common name: Texas firedot lichen
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Created: 2010-01-11 22:45:51 CST (-0500)
Last modified: 2010-10-03 15:56:10 CDT (-0400)
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