Five bryophytes collected during bryological forays to the Ordu and Burdur regions of Turkey were of particular interest. Among them, Orthotrichum hookeri, Plagiothecium neckeroideum and Thamnobryum neckeroides were found to be new to Turkey. Orthotrichum hookeri and Plagiothecium neckeroideum are also new to Southwest Asia. Descriptions, illustrations, ecology, geographic distribution and comparisons with morphologically similar taxa are presented. Two species, Hookeria acutifolia and Orthotrichum sordidum, were recorded only for the second time in Turkey.