Coelogyne putaoensis
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Ordo: Asparagales
Familia: Orchidaceae
Genus: Coelogyne
Name
Coelogyne putaoensis X.H. Jin, L.A. Ye & Schuit. sp. nov. – Wikispecies link – Pensoft Profile
Diagnosis
Coelogyne putaoensis is similar to C. taronensis and C. weixiensis, but can be distinguished by its solid yellowish brown sepals and petals, a brown lip with bright yellow markings, three keels extending from the base of the lip onto the mid-lobe, and lateral keels adorned with papillae.
Type
MYANMAR. Kachin State: Putao Township, Hponkanrazi Wildlife Sanctuary, subtropical, evergreen, broad-leaved, montane forest, 2500–3100 m, epiphytic on tree trunks or lithophytic on rocks, 14 June 2016, Xiaohua Jin et al, PT-2116 (Holotype, PE!).
Description
Pseudobulbs crowded on a short and stout rhizome, ovoid, 2.5–3.2 × 0.8–0.9 cm, when mature covered with brown sheaths at the base, bifoliate. Leaves erect, petiolate, ovate-lanceolate, 6.5–9.5 × 1.2–1.8 cm, including the ca. 1 cm long petiole, acute to acuminate, coriaceous, with 5–7 veins. Inflorescence proteranthous, peduncle arching, 2–3.5 cm long, rachis slender, 2.5 cm long, 2- to 3- flowered. Flowers yellowish brown, up to 6 cm across, lip adaxially on the mid-lobe with a large, bright yellow patch, connected to a bright yellow blotch on the front part of each of the side lobes, the keels orange-brown with much paler, almost whitish marginal papillae. Pedicel-with-ovary 2.2–2.5 cm long, glabrous. Dorsal sepal narrowly elliptic, 3.2 × 1.3 cm, 7-veined, acute. Lateral sepals oblique, oblong-lanceolate, 3.5 × 1 cm, 7-veined, acuminate. Petals narrowly oblanceolate, 2.9 × 0.5 cm, 5-veined, acute at apex, clawed at base. Lip 3-lobed, 2.7 × 1.6 cm; lateral lobes rounded, erect; mid-lobe triangular, 1.6 × 1 cm, margin undulate and lacerate; callus of three keels, extending from the base of lip to the middle (lateral keels) or apex of the mid-lobe (central keel), the central one lower than the lateral two on the mid-lobe, margins of the lateral keels adorned with papillae. Column arching, winged at apex, 1.9 cm long. Fruit not seen.
Etymology
The new species is named after Putao, the northernmost town of Myanmar near which it was discovered in a vast area of unspoiled mountain forest.
Distribution and habitat
Coelogyne putaoensis is a predominantly epiphytic species that grows on moss-covered branches and tree trunks, sometimes also on rocks, in humid, broad-leaved, evergreen, montane forest, from 2500 to 3100 m elevation. At present, C. putaoensis is only known from the type locality.
Conservation status
Least Concern (LC). Coelogyne putaoensis was collected in the Hponkanrazi Wildlife Sanctuary, Putao, Northern Myanmar. Until now, only one population, consisting of ca. 200 individuals, has been discovered in the reserve (1044 square miles), which is a legally protected area under the management of the Myanmar Forest Department. As no threat currently affects the quality of its habitat and the number of mature individuals, the species is here assigned a preliminary status of Least Concern (LC) according to the guidelines for using the IUCN Red List Categories and Criteria (IUCN Standards and Petitions Subcommittee 2017[1]).
Key to Coelogyne putaoensis, C. taronensis and C. weixiensis
Original Description
- Aung, Y; Jin, X; Schuiteman, A; 2017: Coelogyne putaoensis (Orchidaceae), a new species from Myanmar PhytoKeys, (82): 27-34. doi
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Other References
- ↑ IUCN Standards and Petitions Subcommittee (2017) Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf [accessed: May 30, 2017]
