Phaeomegaceros fimbriatus (Gottsche) Duff, J.C.Villarreal, Cargill et Renzaglia new to Bolivia

A remarkable range extension of the Neotropical hornwort Phaeomegaceros fimbriatus (Gottsche) Duff, J.C. Villarreal, Cargill et Renzaglia is presented. Phaeomegaceros fimbriatus was found on the alluvium of a river in a montane cloud forest of the Carrasco National Park in Bolivia. The morphological features and habitat preferences of the species are briefly described and its global distribution range is mapped.