Diversity and morphological relationship of orchid species (Orchidaceae) in Bangka Island, Indonesia

Abstract. Prayoga GI, Henri, Mustikarini ED, Anggyansyah. 2022. Diversity and morphological relationship of orchid species (Orchidaceae) in Bangka Island, Indonesia. Biodiversitas 23: 5323-5332. The population plants has suffered extinction due to the conversion forest land functions. Efforts preserve orchids can be carried out through exploration, identification conservation activities. information are useful for resource management, conservation, hybridization, genetic improvement orchids. This research was determine diversity on Island based characters. conducted four districts namely Central Bangka, West South Bangka. method used is a survey with convenience sampling technique. Observed data were analyzed descriptively calculated index, evenness richness relationship. Analysis done using UPGMA (Unweighted Pair Group Method Arithmetic Mean). results study found 17 i.e. Bulbophyllum subumbellatum, Podochilus microphyllus, Crepidium calophyllum, Phalaenopsis cornu-cervi, Cymbidium finlaysonianum, Malaxix kobi. District 10 species, sumatrana, Liparis rhombea, sp., Robiquieta spathulata, Trichotosia velutina, Micropera collosa, Dendrobium aloifolium, Grammatophyllum speciosium, Adenoncos major. Exploration only same Acriopsis javanica. have moderate diversity, high low index. characters 60% similarities which divided into 9 clusters. Prevention reduction by situ ex-situ methods. In addition, future development orchids, crosses between that unique distant relationships also produce commercial purposes.