Xanthoparmelia enteroxantha Hale
Mycotaxon 27: 574 (1986).
Synonyms: Index Fungorum
Type: xxx.
Thallus: loosely adnate on rock or on soil over rocks, rather stiff and fragile, 6-10 cm broad, greenish yellow; lobes sublinear, elongate, 1-1.5 mm wide, dichotomously branched, separate to imbricate; upper surface clearly white-maculate, shiny, isidia and soredia lacking; medulla typically uniformly salmon orange on in part white; lower surface plane, dark brown on blackening with age, sparsely to moderately rhizinate, the rhizines brown to black, rather coarse, 0.5-1 mm long, simple to furcated. Apothecia unknown. Pycnidia unknown.
Photobiont: Trebouxia.
Chemistry: Salazinic acid, usnic acid, skyrinol, oxyskirin, skyrin (trace), zeorin, and a fourth unidentified anthraquinone (det. C. Culberson an A. Johnson).
Ecology:
Molecular data: Genbank
Distribution: Database
Note:
Xanthoparmelia enteroxantha
DESCRIPTION.-Thallus loosely adnate on rock or on soil over rocks, rather stiff and fragile, 6-10 cm broad, greenish yellow; lobes sublinear, elongate, 1-1.5 mm wide, dichotomously branched, separate to imbricate; upper surface clearly white-maculate, shiny, isidia and soredia lacking; medulla typically uniformly salmon orange on in part white; lower surface plane, dark brown on blackening with age, sparsely to moderately rhizinate, the rhizines brown to black, rather coarse, 0.5-1 mm long, simple to furcated. Pycnidia and apothecia lacking.
CHEMISTRY.-Salazinic and usnic acids, skyrinol, oxyskirin, skyrin (trace), zeorin, and a fourth unidentified anthraquinone (det. C. Culberson an A. Johnson).