Vagn Alstrup and David L. Hawksworth
The Lichenicolous fungi of Greenland.

Abstract
124 lichenicolous (lichen-inhabiting) fungi are reported from Greenland, 72 for the first time, based on a study of 350 mainly hitherto undetermined collections made in the period 1946-83. This number is substantially more than that known from the whole of North America. A key to the species is provided, as are illustrations of new and rare species, extensive references to the literature, and lists of species by the host lichens.