When: 2009-02-27

Collection location: Sewanee, Franklin Co., Tennessee, USA [Click for map]

Who: Chris Parrish (kitparrish)

No specimen available

Location: 35°13’21.51"N, 85°57’3.86"W, el. 572 m, Rutledge Point Trail.

Substrate: Growing on a small tree trunk, 2 m above the ground.

Habitat: Oak-dominated, eastern deciduous woodland at the rim of the western escarpment of the Cumberland Plateau.

Chemistry: cortex C-, K-; medulla C-, K+ yellow, KC-

Lendemer, 2009, A synopsis of the lichen genus Heterodermia (Physciaceae, lichenized Ascomycota) in eastern North America, Opuscula Philolichenum 6: 1-36
McCune, 2003, Heterodermia in the Pacific Northwest

Common name: cupped fringe lichen

Species Lists


apothecia, 10x
apothecial rim, 12.5x
apothecial rim, 16x
lobes, 16x
thallus, 10x
lobules, 32x
undersurface with marginal setae and squarrose rhizines, 40x
undersurface with marginal setae and squarrose rhizines, about 32x
undersurface, 40x
undersurface “white, webby (without a cortex),” (Brodo, p.338), 63x

Proposed Names

46% (2)
Used references: Brodo, Sharnoff, and Sharnoff, p.338

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= Observer’s choice
= Current consensus


Add Comment
By: Gary Perlmutter (gbperlmutter)
2009-03-05 20:23:29 CST (-0500)

Beautiful images of the rhizines.