Xanthoparmelia imbricata Hale
Mycotaxon 34, 2: 547 (1989).
Synonyms: Index Fungorum
Type: xxx.
Thallus: loosely adnate on rock, subpulvinate, rather fragile and breaking apart, 8-10 cm broad, light yellowish green; lobes subirregular, 1-2 mm wide, short with digitate-laciniate branched tips, the tips black rimmed and often suberect and weakly subterete, strongly imbricate; upper surface continuous, emaculate, shiny, isidia and soredia lacking; medulla white; lower surface plane, dark brown at the tips with a yellowish rim, blackening at the center, very sparsely rhizinate, the rhizines black, simple, 0.4-0.8 mm long. Pycnidia numerous; conidia subbifusiform, 0.5 x 5-6 µm. Apothecia lacking.
Photobiont: Trebouxia.
Chemistry: Fatty subdecipiens unknowns 33 and 37 (major), constipatic acid (+/-trace), protoconstipatic acid (+/-trace), usnic acid.
Ecology:
Molecular data: Genbank
Distribution: Database
Note: