Collection location: Sewanee, Franklin Co., Tennessee, USA [Click for map]
Location: 35°12’38.36"N, 85°54’0.40"W, el. 587 m. Beckwith’s Point Trail.
Substrate: Growing with patches of mosses and other lichens on the ground just behind sheets of sandstone “rim-rock” at the rim of a steep canyon.
Habitat: Oak-dominated, eastern deciduous forest at the western escarpment of the Cumberland Plateau.
This lichen’s prostrate form suggests inflated antlers forming a tiny, spiny thicket. It is one of the “thorn lichens,” a group which includes Cladonia uncialis, caroliniana, and others.
Voucher specimen: Tennessee, Franklin County, Sewanee, Beckwith’s Point Trail, 21 Mar 2009, Chris Parrish 0027, det. Gary Perlmutter (NCU)
Note added 28 Apr 2009:
Identification: Specimens were determined by Gary Perlmutter at the UNC Herbarium to represent “Cladonia cf. uncialis (the ‘cf.’ means could be; the KC- doesn’t fit; needs verification).”
Common name: thorn cladonia
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