Taxon 53, 4: 967 (2004).
Basionym: Neofuscelia canariensis Elix & Schumm, Mycotaxon 86: 383 (2003).
Protolog:
Protolog type data: Canary Islands. Gran Canaria: ca. 1.5 km S of La Culata, 27°58'N, 15°36'W, 1570 m, on gravelly soil on dry, rocky N-slope with scattered Pinus canariensis, F. Schumm & U. Schwarz, 25 Dec. 1998; holo: herb. Schumm 5165".
Type locality: Spain, Canary Islands, Gran Canaria, ca. 1.5 km S of La Culata, on gravelly soil on dry, rocky N-slope with scattered Pinus canariensis, 1570 m, 25 December 1998, F. Schumm & U. Schwarz (Schumm 5165 - holotype).
Type locality coordinates: 27°58'N, 15°36'W.
Thallus: small-foliose or foliose, adnate to loosely adnate, 1-4 cm wide. Lobes imbricate or not, + flat, sublinear to irregular, 0.8-2.0 mm wide, lacking laciniae. Upper surface dark, chocolate brown, dull in centre, shiny at lobe apices, + smooth and flat, becoming fissured and cracked, without isidia. Lower surface + smooth, black, dark brown at apices; rhizines sparse to moderate, simple black. Apothecia unknown. Pycnidia unknown (Elix & Schumm 2003: 383).
Photobiont: Probably Trebouxia.
Chemistry: Cortex K-, HNO3+ dark blue-green; medulla K-, C-, KC+ red, P-; containing stenosporonic acid (major), colensoic acid (minor), divaronic acid (minor), alectoronic acid (trace) (Elix & Schumm 2003: 383).
Ecology: Terricolous or saxicolous (Elix & Schumm 2003: 383).
Distribution type: Endemic on Gran Canaria. Only known from the type locality.
Taxonomy: "This species is characterized by the tightly adnate to adnate thallus, the black lower surface, the absence of isidia, and by the presence of stenosporonic, colensoic and divaronic acids in the medulla. Xanthoparmelia canariensis resembles the much more common and widely dispersed N. glabrans (Nyl.) Essl. as both lack isidia, have foliose thalli with a black lower surface and contain orcinol depsidones. However, N. glabrans differs in containing alectoronic and a-collatolic acids (UV+ blue-white) rather than the stenosporonic acid chemosyndrome. Stenosporonic acid has not previously been reported as occurring in Neofuscelia. Both N. glabrans and N. canariensis can be considered to belong to the N. pulla (Ach.) Essl. group of species" (Elix & Schumm 2003: 383).
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