Lepraria finkii (B. de Lesd.) R.C. Harris

Lepraria finkii may be identified directly in the field thanks to the thick, cotton-like thallus and hyphae sticking out of it. The lichen has a wide ecological amplitude, including a surprising tolerance to large scale of substrate pH and very shady niches. It often represents a dominant species at mossy bases of old deciduous trees. However, it is found also on solitary trees and on vertical or overhanging mossy rocks (especially the calcareous ones). Besides, the lichen may occur on decaying wood, typically again in association with bryophytes. Lepraria finkii is one of the most abundant genus members both in the Czech Republic and Europe. Its range is apparently cosmopolitan.

Ascomycota → Lecanoromycetes → Lecanorales → Stereocaulaceae → Lepraria