Bulbophyllum drepananthum J.J.Verm., de Vogel & A.Vogel, Blumea 55 (2010) 278, fig. 1
Type: Leiden cult. 20080322 (holo LAE; iso L), from PNG, New Britain
Roots emerging scattered along the rhizome. Rhizome creeping, to 1.8 mm diam., sections between pseudobulbs up to 0.9 cm long, bracts little persistent. Pseudobulbs ovoid to ellipsoid, to 0.8 by 0.5 cm. Leaf with petiole up to 1 mm, blade elliptic, up to 1.3 by 0.9 cm, index (length/width) 1.4-1.5; subacute. Inflorescence c. 8 cm long, 1-flowered. Peduncle c. 4.5 cm long, bracts 4, the longest c. 6 mm long. Floral bracts tubular at the base, c. 6 mm, acute. Flowers little opening. Pedicel and ovary c. 14 mm long, basal node on a c. 2 mm-long stump. Median sepal porrect, laterally compressed and crested distally, ovate, c. 7.2 by 2.2 mm, index c. 3.2 (all without artificial spreading); acute, margins entire, base broadly attached; rather thick, glabrous. Lateral sepals porrect, oblique, slightly falcate, ovate, shortly clawed, c. 26 by 5 mm, index c. 5.2, subacute, margins entire, base broadly attached; rather thick, glabrous. Petals porrect, ovate-triangular, c. 2.2 by 0.6 mm, index 3.6-3.7; truncate with an aristate tip, margins entire; thin, glabrous. Lip recurved, ovate, c. 2 by 1 mm, index c. 2 (all without artificial spreading); obtuse, margins ciliate, thick; adaxially slightly concave proximally, median part thickened over almost the entire length of the lip, leaving a furrow close to each margin, surface pubescent proximally, papillose-pubescent distally; abaxially with a truncate median ridge. Column c. 2 mm long, stigma narrowly oblong, without a tooth at the base, column foot with a median callus near the tip. Stelidia slightly porrect, triangular, c. 0.2 mm long, subacute, with aan antrorse, deltoid, obtuse tooth along the upper margin. Anther abaxially with a papillose crest, surface otherwise approx. glabrous, front margin drawn out into an inflated beak. Pollinia 2; ellipsoid, without appendage. (After Vermeulen et al., in press)
Colours: Median sepal whitish, with thick blackish purple veins. Lateral sepals purple, distally whitish spotted purple. Petals pale pink. Lip pale yellowish, ciliae white.
Habitat: Epiphyte in hill forest; 350-400 m.
Distribution: New Guinea.
Distribution in New Guinea: Papua New Guinea; see map 96-2360M.jpg.
Cultivation: Warm growing epiphyte.