Syn.: Biatora nivea Müll. Arg., Lecidea nivea (Müll. Arg.) Mig. nom. inval. non P. Crouan & H. Crouan
Lichenised. Poorly known taxon.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)
Altitudinal distribution: nival belt (above the lower limit of perennial snow and glaciers)
Note: a species resembling in habitus Carbonea atronivea but probably belonging to the L. lapicida-group, with a white, rather thin, rimose to areolate, rough thallus (no reaction with K, medulla I+ violet), small, black, non pruinose, marginate, first immersed, later adpressed apothecia (c. 0.5 mm in diam.), a brown hypothecium, a brown epihymenium with a greenish tinge, 8-spored asci, and hyaline, simple, ellipsoid ascospores (6-9 × 3-4.5 μm); on calcareous schists in the nival belt; only known from the type locality in the Western Alps (Switzerland).
