Sulawesi is the fourth largest island in Indonesia. It is also a unique island, possessing very high biodiversity due to its location in the Wallacea area, and having combined plants from both Asia and Australia. An inventory of orchids in Polewali Mandar District was conducted from 25 May to 13 June 2014 to assess the orchid diversity in the area. Orchid specimens were collected by using explorative method. A total of 60 accession numbers were collected in the study area. These collections represent 22 genera and 51 species, consisting of 41 epiphytic orchids and 10 terrestrial orchids. Some species are widely distributed in Indonesia, but few species are found only in eastern part of Indonesia such as Wallacea region, and are even endemic to Sulawesi. Luisia celebica Schltr. and Micropera sterrophylla (Schltr.) Garay are noted as endemic to Sulawesi, while Dendrobium bicaudatum Reinw. ex Lindl., Habenaria beccarii Schltr., Malaxis trigonopetala (J.J.Sm.) S.Thomas, Schuit. & de Vogel and Pinalia quinquangularis (J.J.Sm.) Ormerod are endemic to the Wallacea region, mainly Sulawesi and Moluccas. Among those orchids found in the study, Dendrobium clavator Ridl., Pinalia quinquangularis (J.J.Sm.) Ormerod, and Pinalia xanthocheila (Ridl.) W.Suarez & Cootes are noted as new records in Sulawesi. Many new records of orchids are still to be expected from Sulawesi.
CITATION STYLE
Puspitaningtyas, D. M. (2019). Inventory of orchids in Polewali Mandar, West Sulawesi, Indonesia. Biodiversitas, 20(7), 1887–1896. https://doi.org/10.13057/biodiv/d200714
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