Thompson, J., 1997. American Arctic Lichens: The Microlichens.
Thallus thin, continuous or dispersed, white, verruculose. Apothecia adnate, 0.4-0.7 mm, immarginate, or when young with thin, pale brown margin; exciple pale or the exterior brownish; disk convex, brown or brown-black, rarely pale reddish or bicolored, dull, bare; hypothecium pale to hyaline; epihymenium pale or colored as for hymenium; hymenium 40-50 μm, 14-blue turning dark wine-red, the entire part violet-brown or livid brown, or with upper part pale; paraphyses coherent, slender, tips clavate-thickened; spores biseriate, acicular, tips attenuate at base, acute above, usually 3-septate, 28-41 x 2 μm. (Description after Vainio 1909.)
This species was growing on grass and humus in Siberia. It is included here in case it may occur in the western Arctic of North America.