Chaenotheca furfuracea (L.) Tibell

A lichen with a pulverous yellow-green thallus and tall thin apothecia covered by a dense layer of yellow-green pruina. Juvenile individuals with less developed thallus and shorter stalks may be mistaken for the rarer C. brachypoda.

The species is relatively abundant across Europe, including the Czech Republic. It is sensitive rather to the microhabitat type than to substrate characteristics. Chaenotheca furfuracea usually occurs in forests and rocky complexes, in shaded humid places protected from the rain. These are typically tree bases, inclined trunks, wind-blown trees and rock overhangs. Beside a tree bark, the lichen grows also on roots, wood, soil, bryophytes, plant detritus and acidic rocks.

Ascomycota → Lichinomycetes → Coniocybales → Coniocybaceae → Chaenotheca