LICHALP

Porina rosei Sérus.

Syn.: Zamenhofia rosei (Sérus.) P. James

Lichenised.

Substrate: bark

Altitudinal distribution: submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus)

Note: a species with orange-brown, fragile isidia, perithecia partly immersed in the thallus, and ellipsoid, 3-septate ascospores which are up to c. 30 µm long; on bark of deciduous trees in humid forests; widespread and most common in Western Europe and Macaronesia, with a few records from the Western Alps (France).