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Lecidea hypopta Ach.
Family: Lecideaceae
[Biatora hypopta (Ach.) Räsänen,  more]
Lecidea hypopta image
Thompson, J., 1997. American Arctic Lichens: The Microlichens.
Thallus lacking or thin membranaceous or smooth to low verruculose, white to greenish gray or olivaceous. Apothecia to 0.6 mm broad, soon convex to high-convex, adnate broadly, brown-black, rarely reddish black; margin thin, disappearing; exciple radiate, hyphal walls more or less thickened, exterior brownish or entire exciple hyaline; hypothecium hyaline or upper part brownish and its hyphae vertical; epihymenium hyaline to pale brownish; hymenium 40-80 μm, hyaline or upper part brownish, 1+ blue; paraphyses coherent, ca. 4 μm; asci clavate; spores simple, ellipsoid, 8-11 x 3.5-5 μm.

Reactions: K—, C—, P—.

This species grows on old weathered wood of conifers. It is known from Europe and North America, but its range is too uncertain to state, because of lack of collections. Lynge (1928) noted it from Novaya Zemlya in the Arctic.