Bulbophyllum aureobrunneum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 829
Type: Schlechter 16664 (holo B, lost; iso AMES, K); para: 18548; 19681; 20194 (B, lost)
Epiphyte, spreading; to 30 cm long. Rhizome stem-like, unbranched; covered with striate sheaths. Roots filiform, glabrous. Pseudobulbs close together, narrow, subcylindrical, 1.5-2 by 0.15-0.2 cm; 1-leaved. Leaf linear, sharply acute, 5-8 by 0.4-0.7 cm near the middle. Inflorescence 1-flowered, glabrous, almost as long as the pseudobulb, with few peduncle-scales. Floral bracts very small, much shorter than the slender, pedicellate ovary. Flower glabrous. Sepals oblong, apiculate, 0.8 cm long. Lateral sepals oblique. Petals obliquely obovate-spathulate, obtuse, apiculate, 0.4 cm long. Lip somewhat fleshy subpandurate-ligulate, obtuse, 0.5 cm long; in the middle on the upper side with a transverse, reniform callus. Column short; stelidia subulate; column-foot somewhat incurved. Pedicel and ovary slender, glabrous, 1.3 cm long. (After Schlechter, 1913)
Colours: Flower brown with yellow stripes.
Habitat: Epiphyte in lower montane forest; 800-1300 m.
Flowering time in the wild: June, September, October.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-157M.jpg.
Cultivation: Intermediate growing epiphyte.