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| Oxygyne myanmarensis Nob.Tanaka & Paing, in Tanaka, Paing et Aung, 2026. |
Abstract
A new species of Oxygyne (Thismiaceae), O. myanmarensis Nob.Tanaka & Paing, is described from Myanmar. The genus Oxygyne was previously known only from southern Japan and central Africa, exhibiting a striking disjunct distribution. This discovery is also the first to demonstrate that the genus also occurs in Southeast Asia, bridging the gap between these two regions.
Monocots, Oxygyne myanmarensis, Thismiaceae, Myanmar, mycoheterotrophic plants
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| Oxygyne myanmarensis A. Natural habitat. B. Flower viewed from above. C. Habit. D. a: Flower with part of the perianth tube removed to expose the androecium. b: Stamen. c: Pistil. E. Ovary, longitudinal (a) and transverse (b) sections to show placentation. Scale bars: 1 cm (C, D-a), 1 mm (D-b, c, E). |
Oxygyne myanmarensis Nob.Tanaka & Paing, sp. nov.
Type:—MYANMAR. Kayin State: Paung Daw Oo Mountain, ...
Oxygyne myanmarensis is like O. shinzatoi in having a campanulate perianth tube, long filiform perianth lobes and filaments with calluslike clusters but differs by its brownish orange perianth tube, stigma with a triangled head prolonged into an erect conical projection and papillate anther.
NOBUYUKI TANAKA, CHIT SOE PAING and MU MU AUNG. 2026. A New Species, Oxygyne myanmarensis (Thismiaceae), from Myanmar: Bridging the disjunct distribution between Africa and Japan. Phytotaxa. 782(3);297-300. DOI: doi.org/10.11646/phytotaxa.782.3.8 [2026-10-30]
