Glossorhyncha nigrimarginata

Glossorhyncha nigrimarginata P.Royen, Alp. Fl. New Guinea 2 (1979) 630, fig. 222

Type: Vink 16035 (holo L)

Scandent or scrambling, epiphytic, up to 80 cm long herb with horizontal, slightly drooping up to 40 cm long branches. Stems terete, glabrous. Leaf bifarious, patent, glabrous, ovate, 0.3-2.4 by 0.2-0.5 cm, unequally 2-lobed at tip, each lobe obtuse, mid-rib grooved above, prominently crested below, lateral nerves 3-6 on either side of mid-rib, with less developed ones in between, visible above, prominently crested below, margin erose, wavy; sheaths rather densely warty mainly on the ribs, 0.2-2.2 cm long, many-ribbed, along apical margin with 0.15-0.3 cm long bristles, each scattered papillate-warty. Spathe obovoid-tubular, 1 by 0.4 cm, obtuse or rounded, many-ribbed, mid-rib and larger nerves crested on outside, scattered papillate-warty, warts often hook-like retrorse. Floral bract tubular, 1.2 by 0.35 cm, rounded, many-ribbed but ribs less strongly developed than in spathe, papillate-warty as spathe but less dense. Ovary glabrous, narrowly clavate, slightly curved, 1.2 cm long, 9-ribbed, the 6 ribs on the sutures developed as twin ribs. Median sepal glabrous, oblong or oblong-ovate, 1.2-1.25 by 0.4-0.45 cm, obtuse, 3-nerved at base, up to 9-nerved higher. Lateral sepals glabrous, free, slightly falcate oblong-ovate, 1.2-1.4 by 0.35-0.45 cm, obtuse, at base oblong-ovate widened, 3-nerved at base, up to 8-nerved in apical part. Petals glabrous, narrowly obovate, 1-1.2 by 0.4 cm, rounded, 3-nerved at base, up to 7-nerved in higher parts. Lip adnate to base of column, free part triangular, 3-lobed, 0.5 by 0.5 cm, obtuse, 7-nerved, finely papillate along margin and in a narrow patch along latter; spur glabrous, clavate, 1.1-1.2 cm long, retuse-truncate, on upper side shallowly and broadly grooved. Column short and stout, 0.2 by 0.15 by 0.15 cm, clinandrium denticulate. Anther and capsule not seen. (After Van Royen, 1979).

Colours: Flowers green or white with a green lip, the latter with a black or grey margin and tip.

Habitat: Epiphyte in upper montane forest. Altitude 3250 m.

Flowering time in the wild: July.

Distribution: Malesia (New Guinea, endemic).

Distribution in New Guinea: Papua New Guinea. See map: 325-68M.JPG

Cultivation: Cool growing epiphyte.

Note: The genus Glossorhyncha is here considered to be a synonym of Glomera. For the present species a name under Glomera is not yet available; it may be a species already described under a different name.