Synonyms: Baeomyces byssoides var. carneus (Flörke) Hepp; Baeomyces caprinus (Th. Fr.) H. Magn.; Baeomyces fuscorufescens Vain.
Distribution: N - TAA (Nascimbene 2005), Lomb.
Description: Primary thallus crustose to minutely squamulose, grey-green, greenish or brownish green, forming patches to 10 cm diam.; central part areolate-subsquamulose, the areoles flat to convex, contiguous, 0.2-2 mm long, 0.2-0.7 mm broad, more or less schizidiate or rarely sorediate, the margins crenulate; marginal parts often indistinctly lobed. Apothecia without a thalline margin, terminal on short (to 4 mm), solid stipes, to 2 mm broad, with a reddish brown, flat to mostly convex disc. Paraphyses slender, simple to slightly branched at the tips; hymenium colourless, usually thin. Asci 8-spored, unitunicate, cylindrical, thin-walled, the apex truncate, I-. Ascospores 1(-2)-celled, hyaline, fusiform, 8-11(-15) x 2-4.5(-8) µm. Photobiont chlorococcoid. Spot tests: thallus K+ yellow turning red, C-, KC+ red, P+ orange, UV-; apothecial disc C+ red, K+ rapidly blood-red. Chemistry: norstictic and connorstictic acids; gyrophoric and lecanoric acids in mature apothecia.\
Note: a mainly boreal-montane, perhaps circumpolar lichen found on acid soils high in clay and on weathered siliceous rocks, with optimum near treeline. Certainly restricted to the Alps in Italy.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris