Guttova, Anna & Per Magnus Jorgensen. Leptogium diffractum in Slovakia and Czech Republic (lichenized Ascomycota). Mycotaxon 93: 373-378. 2005.

ABSTRACT: Specimens assigned to Leptogium diffractum originating in Slovakia and Czech Republic were located and revised. The occurrence of the species in Slovakia is supported by one historic collection and one new finding, presented here. The rest of the material as well as Czech material represent Collema parvum. L. diffractum and its synonym L. placodiellum are lectotypified. Overall distribution and aspects of conservation evaluation are discussed.

KEYWORDS: Collemataceae, Leptogium placodiellum, cyanophilic lichens, types