The orchid diversity of Banggai Kepulauan, Central Sulawesi, Indonesia

Few orchid studies have focused on the satellite islands of Sulawesi, including the Banggai Kepulauan Archipelago. This study aims to understand the diversity of orchid species in Banggai Kepulauan and to add data on the diversity of orchids in Sulawesi. We identified 28 species of orchids from Banggai Kepulauan, of which two are endemic to Sulawesi: Dendrobium jubatum Schuit. & de Vogel and Dendrobium rhodobalion Schltr.; four species are only distributed in the eastern part of Indonesia: Cylindrolobus quadricolor (J.J.Sm.) Rauschert, Dendrobium lanceolatum Gaudich., Dendrobium purpureum Roxb. and Habenaria beccarii Schltr.; three species are new records for Sulawesi: Aphyllorchis acuminata J.J.Sm., Dendrobium acinaciforme Roxb. and Tainia trinervis (Blume) Rchb.f.; and one species is a new record for Banggai Kepulauan: Crepidium resupinatum (G.Forst.) Szlach.