Pseuderia nigricans Ridl., Trans. Linn. Soc. London, Bot. 9 (1916) 178
Type: Kloss s.n. (Camp 3, 2500 ft); (Camp 6a to 8, 3100 to 4900 ft.) (syn BM)
Stem slender 0.3 cm diam. Leaves lanceolate, acuminate, acute, at the base rounded, thin-textured, 8.4 by 1.5 cm, with 3-5 thin ribs; sheaths 7-10 cm long, ribbed, mouth entire. Inflorescences lateral, arising a little below the mouth of the leaf-sheath, 1 cm long. Floral bracts oblong, obtuse, imbricating, 0.2 cm long, several. Pedicels in pairs, patent, slender, to 1.6 cm long. Median sepal linear, obtuse, fleshy, 1.2 cm long, 0.15 cm wide. Lateral sepals oblong, lanceolate, fleshy, 0.2 cm wide. Petals linear, falcate, thin-textured, 0.6 cm long, narrower than the sepals, with thickened mid-vein. Labellum with a somewhat long claw, obovate, 0.7 by 0.35 cm, fleshy, at the apex papillose, with undulate margins, the median keel extending to near the apex. Column slender, curved, above hardly swollen, dorsally channelled; clinandrium not deep, with raised margins; rostellum entire, broad; stigma oblong. Anther laterally flattened, dorsally with a narrow rounded crest; locules narrow. Pollinia elliptic, narrow. (After Ridley, 1916)
Colours: Leaves when dried dark brown, otherwise colours not recorded.
Habitat: Climber in lower montane forest; 760 to 1490 m.
Flowering time in the wild: Not known.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua (Indonesia). See map: 586-8M.JPG.