Chaenotheca gracilenta (Ach.) Mattsson & Middelb.

A species forming tall, black-stalked apothecia with globose capitulum („head“) on the pale-green farinose thallus when fresh. The apical part of the stalked apothecia is often covered with a greyish pruina.

Its typical habitats are crevices and rain-protected parts of bark and soft decaying wood of old trees, their snags and stumps, but it may grow also on plant detritus under rock overhangs. This lichen is one of the typical boreal-montane elements of old-growth forests. However, it may occur in different conditions if suitable microhabitats are available, such as in the two recent Czech localities in the Český kras and Slavkovský les Protected Landscape Areas. Other recent records come from the Šumava Mts. Elsewhere in the country, the species was reported only in the past. The lichen is relatively rare also in central Europe. More data is known only from the Alps and the Carpathians.

Literature: Nimis P.L., Hafellner J., Roux C., Clerc P., Mayrhofer H., Martellos S. & Bilovitz P.O. (2018): The lichens of the Alps – an annotated checklist. – Mycokeys 31: 1–634.

taxonomic classification:

Ascomycota Lichinomycetes Coniocybales Coniocybaceae Chaenotheca

Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C1 – critically endangered

Occurrence in the Czech Republic

All records: 7, confirmed 7. One click on a selected square displays particular record(s), including their source(s).


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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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