Micarea lithinella (Nyl.) Hedl. - přehlížený druh lichenoflóry České republiky

Specimens of a widely distributed, but less fequently collected microlichen species Micarea lithinella (Nyl.) Hedl. from the Czech Republic are discussed. Short description with notes on the ecology and distribution of the species are given. Specific ecological requirements of the species are also shortly discussed. Drawings of ascospores and conidiospores are presented and the species distribution in the Czech Republic based on the examined herbarium material is mapped.