Calicium trabinellum (Ach.) Ach.

This species has an immersed thallus and black, stalked fruiting bodies with a yellow pruina on its margin. Its typical substrate are bare snags of conifers, less frequently those of deciduous trees. Most often it occurs in open forests where a sufficient amount of dead wood is, but it may be found also around screes, in peat bogs and similar habitats. It is a boreal-montane lichen in the Czech Republic distributed mainly across foothills and mountain areas. Nowadays, it is abundant in the Šumava Mts, in other parts of the country it occurs rarely.

Ascomycota → Lecanoromycetes → Caliciales → Caliciaceae → Calicium