Acarospora rugulosa Körb.

Acarospora rugulosa occurs in Europe at a variety of elevations in full sun on siliceous rock. It is known from natural and anthropogenic substrates, including heaps of stones with a high content of metals. In the Czech Republic it is quite a rare species.

Acarospora rugulosa cannot be morphologically distinguished from A. squamulosa, and both develop apothecia in a thalline margin with usually rugulose disc. Anatomically A. rugulosa has a higher hymenium than A. squamulosa [(110–)125–140(–175) μm vs. 100–120(–130) μm]. Specimens that overlap are rare but if uncertain check several apothecia. Magnusson (1929) considered A. rugulosa a synonym of A. squamulosa. He treated rugulosa as A. montana H. Magn.

Literature: Magnusson A.H. (1929): A monograph of the genus Acarospora. – Kungliga Svenska Vetenskaps-Akademiens Handlingar 7: 1–400.

taxonomic classification:

Ascomycota Lecanoromycetes Acarosporales Acarosporaceae Acarospora

Red List (Liška & Palice 2010):VU – vulnerable
Red List (Malíček 2023):C2 – strongly endangered

Occurrence in the Czech Republic

All records: 13, confirmed 12. One click on a selected square displays particular record(s), including their source(s).


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

Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

© Botanický ústav AV ČR, v. v. i. 2020–2024