Floristic notes on Palaearctic Laboulbeniales (Ascomycetes)

Floristic notes arc presented on 53 taxa of Laboulbeniales from various parts of the Palaearctic Regwn and one taxon from Taiwan. New species records are given for 33 countries or islands. Special attention is paid to the U.S.S.R., for which there are only scattered records in the literature. The northernmost records of Laboulbeniales are reported from Tit-Ary (Rickia hyperborea Balazuc) and Bulun (Laboulbenia vulgaris Peyritsch), by the Lena River, north of 70N in Yakutia.