Xanthoparmelia hypoleia (Nyl.) Hale
Phytologia : 487 (1974).
Basionym: Parmelia hypoleia Nyl., Syn. meth. lich. (Parisiis) 1, 2: 393 (1860).
Synonyms: Index Fungorum
Type: xxx.
Thallus: foliose, loosely adnate, more or less pulvinate, stiff, 5-10 cm broad, dark yellowish green; lobes sublinear to linear, 0.6-2mm wide, dichotomously branched, imbricate, subascending at the tips; upper surface effigurate-maculate, shiny, isidia and soredia lacking; medulla white; lower surface plane to weakly canaliculate with a yellow rim toward the tips, black, very sparsely rhizinate, the rhizines black, simple to furcated, 0.5-1 mm long. Pycnidia common; conidia bifusiform, 0.5 x 6-7 µm. Apothecia common, substipitate, 3-7 mm in diameter; spores 6-7 x10-12 µm.
Photobiont: Trebouxia.
Chemistry: Protocetraric acid, virensic acid (+/-trace), usnic acid.
Ecology: On rock.
Molecular data: Genbank
Distribution: Database
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