Bryologist 112, 2: 375 (2009).
Synonym: Index Fungorum
Protolog: "U.S.A. California: Siskiyou Co., trail to Youngs Valley from Private Lake, due W of The Lieutenants, 41°52.8'N, 123°37.4'W, 1440 m, on Pseudotsuga in old mixed-conifer forest, Jun 2003, McCune 27031 (OSC, holotype; UCSC, isotype, acc. no. 4561; GenBank EU543560)." Data lacking.
Type locality: USA, California, Siskiyou Co., trail to Youngs Valley from Private Lake, due W of The Lieutenants, on Pseudotsuga in old mixed-conifer forest, 1440 m, Jun 2003, McCune 27031 (OSC - holotype; UCSC - isotype, acc. no. 4561, GenBank EU543560).
Barcode: Available. Data lacking.
Coordinates: 41°52.8'N, 123°37.4'W.
Thallus: fruticose, suberect to drooping or subpendent, to 12 cm long or more, sparsely to moderately branched; surface fluorescent yellow-green or chartreuse, matte, lightly to heavily scabrous; branches nearly cylindrical or somewhat flattened or irregular in cross section, nearly smooth to slightly foveolate or ridged and fissured, 0.5 - 2.5 - 3.0 mm diameter, the center loosely filled with cottony hyphae; medulla white; isidia lacking; soredia lacking. Apothecia common, to 1 cm diameter, disk brown, with a thalline exciple and sparse to abundant fibrils extending from the margins; ascospores ellipsoid, mostly 7.3 - 7.8 / 4.0 - 5.0 µm, averaging 7.5 / 4.5 µm. Pycnidia common, forming black spots in the upper cortex; spermatia slenderly cylindrical with a slight swelling off center, 7.5 - 8.0 / 0.6 - 1.0 µm (McCune & Altermann 2009).
Photobiont: Trebouxia spec.
Chemistry: Norstictic acid in apothecia, often in low quantities and difficult to detect with TLC (McCune & Altermann 2009).
Ecology: On bark or wood, apparently uncommon in montane to subalpine forests.
Molecular data: Genbank
Distribution: USA, California Database
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