Lynge B 1928. Lichens from Novaya Zemlya. In Holtedahl O. Report of the Scientific Results of the Norwegian Expedition to Novaya Zemlya 1921. Oslo. 1-299.
I.Goose Bay, on a granitic rock.
Thallus soft, small, maculae round 5-10 mm wide. Areolae small, 0.2-0.3 mm, contiguous or subcontiguous, thick, obscurely dark brownish-grey, bullate, hypothallus black, distinct.
Perithecia not numerous, immersed in thalline verrucae, upper 1/3-1/4 of perithecium black, opaque, epruinose, prominent. Perthecia globose, diam. 0.3 mm. Amphithecium thick, carbonaceous. Excipulum widely covered towards divergent base. Excipulum to narrow perithecial base dark grayish-brown or darkly colored. Spores narrowly ellipsoid.
Nucleus J yellowish red.
Its soft bullate thallus is very characteristic; it is easily detached from its substratum.The amphithecium covers the excipulum far down; it is divergent at its lower part, leaving only the basis of the perthecia free.In my sections I found carbonized as well as rather pale parts at the basis of the perthecia in one section, in another (was it quite central?) a quite carbonized ring surrounding the nucleus.I cannot place it with certainty in any of Verrucaria sections.(Melanothecium or Leucobasis).