Bulbophyllum ischnopus Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 205
Type: Schlechter 14343 (holo B, lost; iso BO, BR, K, P)
Epiphyte, very slender, up to 8 cm long. Rhizome elongated terete. Roots filiform, elongated, flexuose, glabrous. Pseudobulbs close together, slender ascending, about terete, glabrous, 0.4-0.5 by 0.15-0.2 cm above the base; base appressed to the rhizome; 1-leaved. Leaves erect, linear, acute, towards the base somewhat narrowed, in the genus thin, glabrous, 4-6 by 0.2 cm near the middle. Inflorescences 1-flowered, erect, slender, filiform, terete, glabrous, usually somewhat longer than the leaves. Floral bracts minute, ovate, acuminate, much shorter than the ovary. Flowers rather small in the genus, slender pedicellate, opening wide, pendulous. Sepals lanceolate, aristate-acuminate, glabrous, 0.8 cm long. Lateral sepals falcate-oblique. Petals narrowly oblong, obtuse, subfalcate, 0.2 cm long; margins minutely serrulate. Lip somewhat fleshy, lanceolate, obtuse, papillose-ciliate, 0.3 cm long; above the base in front superioria utrinque falcate-auriculate; above glabrous grooved; underneath semiterete. Column short; stelidia subulate-falcate, large, much longer than the anther. Anther cucullate-quadrangular, in front subemarginate-truncate. Pedicel and ovary terete, glabrous, 1.5 cm long. Fruit subcylindrical, 1.5 by 0.3 cm. (After Schlechter, 1905)
Colours: Flower yellow, base violetish.
Habitat: Epiphyte in lower montane forest; 800-2000 m.
Flowering time in the wild: April, September, November.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-882M.jpg.
Cultivation: Intermediate growing epiphyte.