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Issue: Vol. 726 No. 1: 29 Oct. 2025
Type: Article
Published: 2025-10-29
DOI: 10.11646/phytotaxa.726.1.5
Page range: 53-58
Abstract views: 399
PDF downloaded: 13

Flora of Gayo Plateau II: Corybas gayoensis (Orchidaceae), a new narrow endemic orchid from Sumatra

Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Samudra, Jl. Prof. Dr. Syarief Thayeb, Meurandeh, Langsa Lama, Langsa, Aceh 24416, Indonesia
Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Samudra, Jl. Prof. Dr. Syarief Thayeb, Meurandeh, Langsa Lama, Langsa, Aceh 24416, Indonesia
Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Samudra, Jl. Prof. Dr. Syarief Thayeb, Meurandeh, Langsa Lama, Langsa, Aceh 24416, Indonesia
Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Samudra, Jl. Prof. Dr. Syarief Thayeb, Meurandeh, Langsa Lama, Langsa, Aceh 24416, Indonesia
Yayasan Konservasi Biota Lahan Basah, Jalan Raya Sawo 17–19, Surabaya, Jawa Timur, Indonesia, Tumbuhan Asli Nusantara Foundation, BTN Kopri Blok C1 No 96, Kawatuna, Mantikulore, Palu, Provinsi Sulawesi Tengah 94233, Indonesia
Indonesian Carnivorous Plant Society, Jl. Manggis 52, Jakasetia, Bekasi, Jawa Barat 17147, Indonesia, Tumbuhan Asli Nusantara Foundation, BTN Kopri Blok C1 No 96, Kawatuna, Mantikulore, Palu, Provinsi Sulawesi Tengah 94233, Indonesia
geophyte montane plant taxonomy western Malesia flora of Indonesia Monocots

Abstract

A new species, Corybas gayoensis is described here as endemic to the northern part of Sumatra. The new species is similar to Corybas pictus, but differs in having acuminate dorsal sepals with dentate upper margin, labellum with light red and concave central part, and a long fimbriate margin. The species is assessed as Critically Endangered due to its narrow distribution, continuous decline of population and habitat degradation. Detailed descriptions, illustrations, photographs, and discussion are given.

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How to Cite

Mustaqim, W.A., Arico, Z., Silviana, A., Afriyani, L., Yudistira, Y.R. & Victoriano, M. (2025) Flora of Gayo Plateau II: Corybas gayoensis (Orchidaceae), a new narrow endemic orchid from Sumatra. Phytotaxa 726 (1): 53–58. https://doi.org/10.11646/phytotaxa.726.1.5