Sclerophora pallida (Pers.) Y.J. Jao & Spooner

Sclerophora pallida is a rare calicioid lichen growing on rough bark of old deciduous trees with higher pH, typically ashes, maples and elm trees. Sometimes, it also colonizes wood. It occurs in forests as well as on solitary trees. In Europe, the species is widely distributed but sparsely scattered due to unavailability of suitable stands. They decreased among others due to acid rain in central Europe, which caused lowering of tree bark pH. In the Czech Republic, the lichen is currently the second most abundant species of the genus, found in the Šumava Mts and several other localities. In the past, it was also recorded at lower to middle elevations of SW Moravia.

Literature: Liška J., Palice Z., Dětinský R. & Vondrák J. (2006): Changes in distribution of rare and threatened lichens in the Czech Republic II. – In: Lackovičová A., Guttová A., Lisická E. & Lizoň P. [eds], Central European lichens – diversity and threat, p. 241–258, Mycotaxon Ltd., Ithaca.

taxonomic classification:

Ascomycota Lichinomycetes Coniocybales Coniocybaceae Sclerophora

Red list:CR – critically endangered

Occurrence in the Czech Republic

All records: 22, confirmed 22. 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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