Xanthoparmelia epigaea Hale
Mycotaxon 27: 576 (1986).
Synonyms: Index Fungorum
Type: xxx.
Thallus: loosely adnate, firm, covering extensive areas but breaking up into individual colonies 3-5 cm broad, light yellowish green; lobes sublinear, 1.5-5 mm wide, weakly convoluted, elongate and little branched; upper surface continuous, emaculate, shiny, rugose with age, isidia and soredia lacking; medulla white; lower surface plane, pale brown, densely rhizinate, the rhizines pale brown, 0.5-1.5 mm long, simple to furcated. Pycnidia common; conidia bifusiform, 0.5 x 6-7 µm. Apothecia sparsely developed, adnate, 2-4 mm in diameter; spores 5-6 x 9-11 µm.
Photobiont: Trebouxia.
Chemistry: Fatty subdecipiens unknowns 33 und 37 (major), constipatic acid (+/-trace), protoconstipatic acod (+/- trace), usnic acid.
Ecology: on pebbles to nearly free growing over soil and pebbles.
Molecular data: Genbank
Distribution: Database
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