Image of protoblastenia lichen

Description:

Habitat: On a large boulder on the edge of grassland in an alpine valley, vertical face, east oriented, mostly sunny, partly protected from direct rain, precipitations ~3.000 mm/year, average temperature 6-8 deg C, elevation 870 m (2.850 feet), alpine phytogeographical region. Substratum: large hard cancerous boulder Ref.: F. Dobson, Lichens, The Richmond Publ. (2005), p364. V.Wirth, Die Flechen Baden-Wuerttembergs, Ulmer (1995), Vol. 2., p773. Comment: Determination not certain. Field characters fit well to literature, but no microscopic tests have been done.