The genera Fleischerobryum Loeske and Philonotis Brid. of the Bartramiaceae and the family Mniaceae (excluding Pohlia Hedw.) are revised for Vietnam, based on specimens studied and literature reports. Four species are added to the flora: Orthomnion javense (M.Fleisch.) T.J.Kop., Philonotis asperifolia Mitt., P. laii T.J.Kop., P. speciosa (Griff.) Mitt. syn. nov. (based on P. mercieriParis & Broth.), and Plagiomnium wui (T.J.Kop.) Y.J.Yi & S.He. Eight species are excluded from the flora. Two taxa are considered doubtful. The flora now includes one species of Fleischerobryum, eight species of Philonotis, one species of Mnium Hedw. (doubtful), three species of Orthomnion Wills. and five species of Plagiomnium (one doubtful). The 15 species are divided into phytogeographical elements. Eight belong to the Southeast Asiatic temperate to meridional element, and seven to the Southeast Asiatic meridional to subtropical element. One species is pantropical and one is pansubtropical. The new finds widen the distribution range of several species that were previously known only from North or South Vietnam.Peer reviewe
