Chaenotheca chlorella (Ach.) Müll. Arg.

The species is characterised by its yellow-pruinose fruiting bodies and a relatively variable verruculose (sometimes even immersed) thallus. It grows on wood and bark of old deciduous wooden plants and less often also on conifers (mainly firs), including their snags. In the Czech Republic, the lichen occurs mainly on beech snags in old-growth forests. It is rare in the country. The largest populations are known from well-preserved forest areas, such as the Šumava Mts, Český les Mts and Novohradské hory Mts. In Europe, C. chlorella is sparse to rare and shows an affiliation to old trees and old-growth forests.

Ascomycota → Lichinomycetes → Coniocybales → Coniocybaceae → Chaenotheca