Prispevek k poznavanju rodu Usnea (Parmeliaceae) na Slovaškem: Usnea glabrescens

Usnea glabrescens has been reported to be a re-found species after almost 24 years. We found this lichen in the Bielovodská dolina Valley, Tatry Mts. in 2008. The locality is situated in Tatra National Park near the borderline with Poland. Morphology and medullary chemistry of the specimen were typical for the species. Usnea glabrescens grew in a moderately open and humid mixed forest on the bark of Alnus incana.Poročamo o ponovnem odkritju vrste Usnea glabrescens po skoraj 24 letih. Našli smo jo leta 2008 v dolini Bielovodská dolina, v gorovju Tatre. Rastišče je znotraj Nacionalnega parka Tatra v bližini državne meje s Poljsko. Morfologija in medularni kemizem primerka sta značilna za vrsto Usnea glabrescens. Lišaj je uspeval v zmerno odprtem in vlažnem gozdu na lubju sive jelše (Alnus incana)