TYPE. “Super corticem trunci abietini ad Mont-Dore in Avernia (E. Lamy).” [FRANCE, Le Mont-Dore, on spruce trunks] Nylander (1881).
Description. Life form: lichenized fungus.
[Translated and modified from Nylander 1881] Thallus crustose thin to evanescent, brown. Photobiont chlorococcoid alga. Epithecium brownish; hymenium hyaline, I+ blue then yellowish; paraphyses not easily separated. Ascomata biatorine apothecia 0.2-0.3 mm diam.; disk flat; margin paler than disk. Asci 8-spored; ascospores ellipsoid, simple, 7-9 × 5-6 µm.
Chemistry. Not reported.
Substrate and Habitat. Corticolous on conifers.
Distribution. Europe-Macaronesia with disjunct population in the Pacific Northwest of North America.
Literature
Nylander, W. (1881) Addenda nova ad Lichenographiam europaeam. Contin. XXXVIII. Flora (Regensburg) 64(34): 529-541.