Vegetation Analysis of Lowland Forest in Batanta Island, Raja Ampat, Papua. A vegetation analysis of Batanta lowland forest has been made by setting up 17 plots of each 30-m x 30-m distributed in 3 study sites were Yenanas (5 plots), Yensawai (7 plots) and Wailebet (5 plots). All trees (dbh. e”10 cm) within all of 17 plots were measured, and determined their positions, and identify their species. In total there were 171 tree species recorded within plots and belonging to 108 genera and 40 families. Pometia pinnata was the most common speciesbelonging to 108 genera and 40 families. Pometia pinnata was the most common species followed by Anthocephalus macrophyllus, Pangium edule, Toxotrophis illicifolius, and Koordersiodendron pinnatum. Almost all of common species such as Pometia pinnata, Anthocephalus macrophyllus, Celtis hidebrandii and Intsia bijuga were observed as the emergent and/or canopy trees. According to ordination analysis there were five community types, Aporusa–Pometia, Antocephalus-Toxotrophis, Sterculia-Grewia, Ficus-Antocephalus, and Duabanga-Pterocymbium communities. However floristic compositions varied among plot sites, which might be a characteristic of vegetation of Papua and the nearby small islands.