Recent rediscovery of the epiphytic moss Orthotrichum pulchellum Brunt. in Poland

Orthotrichum pulchellum Brunt. has been collected in Poland recently. So far, only one old record of the species from the nineteenth century is known from this country. The epiphytic moss has been discovered recently on three localities in the north-western part of the country. Diagnostic features and ecology are presented. The historical and recent findings of the species in Poland are briefly discussed and its current distribution is mapped. It is suggested that the species should be placed on the red-list of mosses in Poland in the category “Indeterminate”.