A revision of the Fissidentaceae (Musci) of La Réunion (including all species known from Mauritius and Rodriguez)

Abstract

AbstractThis is a revision of the Fissidentaceae of La Réunion with keys, descriptions and illustrations of 35 species. Fissidens pseudoplumosus subsp. subplanifrons, the only Mascarene taxon not known from La Réunion, is included. Eighteen species are reported as new from La Réunion: Fissidens androgynus, F. bogosicus, F. curvatus, F. cyatheicola, F. flaccidus, F. leucocinctus, F. madecassus, F. megalotis subsp. helictocaulos, F. pallidinervis, F. pocsii, F. porrectus, F. ramulosus, F. rufescens, F. serratus var. serratus, F. submarginatus, F. taxifolius, F. tenellus and F. zollingeri; and three species are reported as new for Mauritius (F. brevifrons, F. ramulosus and F. sciophyllus). Fissidens tenellus is recorded for the first time from Africa. Fissidens subplanifrons is made a subspecies of F. pseudoplumosus. Fissidens cyatheicola, a new species, is proposed. Fissidens boivinianus var. longifolius is subsumed under F. asplenioides, F. cremersii and F. grandiretis are subsumed under F. pellucidus and F. ellipticus and F. ligulinus under F. punctulatus.Keywords: FISSIDENSLA RÉUNIONMASCARENESREVISION