Chaenotheca stemonea (Ach.) Müll. Arg.

Chaenotheca stemonea is recognizable by its finely farinose (leprose), yellowish or bluish light-green thallus which, due to the presence of barbatic and obtusatic acids, turns yellow-orange in the reaction with Pd. The species' typical habitats are shaded and rain-protected patches of acidic tree bark, such as on tree bases or in deep crevices. The lichen is most often found on spruce and oak trees. Rarely, it also grows on wood of stumps and snags. It occurs in various forest types, from lowland oak forests and floodplain forests to mountain spruce forests. Generally, the lichen prefers old natural forest stands. It is sparse in the Czech Republic and central Europe, but may be locally abundant. It is probably a partially overlooked lichen due to its usually hidden occurrence and frequent absence of fruiting bodies.

taxonomic classification:

Ascomycota Lichinomycetes Coniocybales Coniocybaceae Chaenotheca


Red list:VU – vulnerable

Occurrence in the Czech Republic

All records: 199, confirmed 194. One click on a selected square displays particular record(s), including their source(s).

Legend

record after the selected year
record before the selected year
Doubtful and errorneous records are not displayed.
0
credible record
doubtful record
erroneous record
record without revision

Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

© Botanický ústav AV ČR, v. v. i. 2020–2023