Xanthoparmelia exuviata (Kurokawa) Hale
Mycotaxon 20(1): 79 (1984).
Basionym: Parmelia exuviata Kurok., Bull. natn. Sci. Mus., Tokyo, B 8(2): 36 (1982).
Synonyms: Index Fungorum
Type: xxx.
Thallus: adnate to loosely adnate, fragile, 4-9 cm broad, yellowish green; lobes subirregular, 1-3 mm wide, continuous to imbricate; upper surface continuous, emaculate, shiny, moderately to densely isidiate, the isidia globose to subcylindrical (Figure 15a), 0.09-0.2 mm in diameter, 0.1-0.4 mm high, the tips weakly epicorticate, blackening, weakly erumpent, sparsely branched; medulla white; lower surface plane, pale brown, sparsely rhizinate, the rhizines pale brown, simple, 0.2-0.5 mm long. Pycnidia common; conidia bifusiform, 0.5 x 6-7 µm. Apothecia common, substipitate, 2-4 mm in diameter; spores absent.
Photobiont: Trebouxia.
Chemistry: Exuviatic acid A, exuviatic acid B, usnic acid.
Ecology: on rock.
Molecular data: Genbank
Distribution: Database
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