Toninia tristis (Th. Fr.) Th. Fr.

A variable species forming (chestnut) brown squamules with central depressions and black apothecia. Nine subspecies are currently recognized (Timdal 1992), five of them occur in Europe. This widely-understood species grows on calcareous soil and rocks from lowlands to high mountains. The thalli are commonly associated with cyanolichens when young. Its European distribution range lies in continental areas of the southern parts. It is very rare in the Czech Republic, collected at only three localities in Český kras (the Bohemian karst) in the past – the Velká hora hill, the Koda Nature Reserve and near Hostim. Recently, a population counting four thalli was confirmed on diabases at Na Hradišti near Hostim (Svoboda 2008).

Literature: Timdal E. (1992): A monograph of the genus Toninia (Lecideaceae, Ascomycetes). – Opera Botanica 110: 1–137. Svoboda D. (2008): Vzácné lišejníky Cladonia peziziformis, Phaeophyscia hirsuta a Toninia tristis v Českém krasu. – Fragmenta Ioannea 9: 35–46.

taxonomic classification:

Ascomycota Lecanoromycetes Lecanorales Ramalinaceae Toninia

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

Occurrence in the Czech Republic

All records: 4, confirmed 4. 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