A small remarkable bryophyte collection from the Ibb province (Yemen), with eleven new records for the bryoflora of Yemen

Based on a recent small bryophyte collection from the western escarpment mountains of Yemen in the vicinity of Ibb (Ibb Governorate), 36 mosses are reported, among them 11 new to the bryoflora of the country. Gemmabryum nanoapiculatum (Ochi & Kürschner) Kürschner comb. nov. is collected for the first time since the type collection. Beside some hygrophytic taxa, growing in the vicinty of water pools and runnels, most of the recorded species belong to drought adapted, xerophytic taxa and fit into the expected bryophyte spectrum for the Arabian Peninsula. Together with pantropical and Afromontane species they indicate a common floral history and past and present migration routes.