Bulbophyllum hystricinum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 840
Type: Schlechter 20211 (holo B, lost; iso AMES, BO)
Epiphyte, spreading, 10-20 cm long. Rhizome stem-like, curved, covered with sheaths. Roots filiform, glabrous. Pseudobulbs close together, subparallel to the rhizome, cylindrical, 0.5 by 0.25-0.3 cm. Leaf oblong-ligulate, 2.5-4.5 by 0.7-1.4 cm near the middle. Inflorescences 1-flowered, short, fascicled, with a few small peduncle-scales. Floral bracts very small, much shorter than the ovary. Sepals ovate, acuminate, glabrous, 0.33 cm long. Lateral sepals oblique. Petals obliquely oblong, subretuse-broadly obtuse; in the middle somewhat narrowed; margins very minutely and densely finely ciliate. Lip lanceolate, tongue-shaped, obtuse, 0.2 cm long; base retuse; underneath except for base and apex covered with acute, subulate papillae. Column short; stelidia subulate, hardly reaching the middle of the lip; column-foot with the apex somewhat incurved. Anther cucullate, glabrous. Ovary shortly pedicellate, glabrous, 0.5 cm long. (After Schlechter, 1913)
Colours: Flower yellow. Petals with dark purple upper half. Lip dark purple with yellow apex.
Habitat: Epiphyte in lower montane forest; 759-1420 m.
Flowering time in the wild: September, October.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua (Indonesia); Papua New Guinea; see map 96-837M.jpg.
Cultivation: Intermediate growing epiphyte.