Xanthoparmelia teydea I. Pérez-Vargas, C. Hernandez-Padrón & Elix
Bryologist 113, 1: 52 (2010).
Synonyms: Index Fungorum
Type: Spain, Canary Islands, Tenerife, "El Teide" National Park, sobre el mirador de Fuente de Mesa, on basaltic rocks, UTM 344366/3134162, 1975 m, July 2007, C. Hernandez-Padrón, P. L. Pérez de Paz & I. Pérez-Vargas (TFC LICH 8653 - holotype, CANB, TFC LICH - isotypes).
Thallus: foliose, adnate to loosely adnate, saxicolous, 5 - 15 cm wide; lobes subirregular, flat to somewhat convex of concave, narrow and elongate, crenate, 2-4 mm wide at apices, becoming dull and wrinkled in the older, central parts of the thallus, without soredia, isidia or pseudocyphellae; medula white; lower surface dark brown to black, moderately rhizinate. Rhizines simple, concolorous with the lower surface, to 1 mm long. Apothecia common, to 2 - 4 - 8 mm wide, often crowded in the thallus center, sessile or more frequently short stipitate; disc dark brown, concave at first but becoming undulate-distorted and ultimately convex; margin smooth and entire to weakly crenate; asci clavate, 8-spored; ascospores ellipsoid, hyaline, simple, 7-9 / 5-6 µm. Pycnidia rather common, immersed; conidia more or less bifusiform 5 - 6 / 1 µm (Pérez-Vargas et al. 2010: 52).
Photobiont: Trebouxia.
Chemistry: Upper surface HNO3+ blue-green; medulla K-, C+ and KC+ pink-reddish, PD-, UV- or faint whitish; containing gyrophoric acid (major), lecanoric acid (minor), methyl divaricate (minor), stenosporic acid (minor), homoscrobiculin (minor), methyl perlatolate (minor)(Pérez-Vargas et al. 2010: 52)S.
Ecology: On solid basaltic rocks in high mountains of the Canary Islands.
Molecular data: Genbank
Distribution: Spain, Canary Islands, Tenerife. Database
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