Vol. 75 No. 2 (2020)

Macro- and micro-morphologies and conservation status of Hymenorchis javanica (Orchidaceae: Aeridinae): the only representative of the genus in Malaysia

Edward Entalai Besi
Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia
Farah Alia Nordin
School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
Rusea Go
Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia

Published 2020-11-18


  • endangered species,
  • climate change,
  • Hymenorchis,
  • Orchidaceae,
  • taxonomy

How to Cite

Besi, E. E., Nordin, F. A. ., & Go, R. (2020). Macro- and micro-morphologies and conservation status of Hymenorchis javanica (Orchidaceae: Aeridinae): the only representative of the genus in Malaysia . Webbia, 75(2), 317–328. https://doi.org/10.36253/jopt-9498

Funding data


Analysis of morphological characters and conservation status were carried out for Hymenorchis javanica from Peninsular Malaysia. Morphology was studied in detail and accompanied by a botanical drawing prior to the correct identification. From most closely related Hymenorchis phitamii found in Vietnam, it differs in the lip ovate-oblong with apex acute and margins entire, and the leaves margins prominently serrulate. Based on the current IUCN criteria, we proposed H. javanica as an endangered species under the threatened category. Judging from the current small population sizes and degraded habitats, H. javanica in Malaysia is threatened by extinction in the wild.


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