BRYOPHYTE FLORA OF THE HUON PENINSULA, PAPUA-NEW-GUINEA .48. PLAGIOTHECIACEAE (MUSCI)

In Western Melanesia (West Irian, Papua New Guinea, Solomon Islands) the family Plagiotheciaceae (Musci) is represented by Plagiothecium neckeroideum B.S.G. var. javense Fleisch. The report of P. undulatum (Hedw.) B.S.G. is based on misidentified specimens and the species is excluded from the flora; the presence of P. denticulatum (Hedw.) B.S.G. in the region is considered doubtful. Plagiothecium neckeroideum var. javense is described and illustrated, its Western Melanesian as well as its total range is given, and its ecology in Western Melanesia is briefly discussed.