Bulbophyllum glaucum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 866
Type: Schlechter 20080 (holo B, lost; iso AMES)
Rhizome hanging down perpendicularly, up to 30 cm long, flattened and winged, largest diam. 0.8-1.4 mm; rhizome scales of the longest internodes distinctly shorter than those internodes, leaving bare large portions of the rhizome. Roots generally close to the base of the rhizome, spreading. Pseudobulbs cylindrical, 0.5-1.5 cm apart, 0.15-0.25 by 0.10.15 cm, not flattened. Petiole 1.5-2 mm. Leaf blade ovate to elliptic, 1-1.8 by 0.6-1.2 cm, index 1.5-2.3, tip acuminate. Inflorescence c. 2.5 cm, 1-flowered. Peduncle 0.8-1.2 cm; bracts 3, the longest 3.5 mm. Floral bracts ovate, c. 4 mm, tip acuminate. Pedicel and ovary c. 5.5-7 mm, with the node c. 1 mm from the floral bract. Flowers moderately opening. Median sepal ovate, 12.5-25 by 2 mm, index 6-13, tip long acuminate; thin; glabrous. Lateral sepals free, oblique, approx. triangular, 13-25 by 4 mm, index 3-5.5, Petals oblique, ovate to elliptic, 4-5 by 1.7 mm, index 2.3-3, tip obtuse; thin; glabrous. Lip curved, general outline ovate, 5-7 by 2-2.5 mm, index 2.5-3 (not spread), tip rounded; thick but soft; glabrous; adx. concave near the base; abx. with an inconspicuous, retuse median ridge. Column from ovary to the tip of the stelidia 1.2 mm; stigma not protruding at its base, slit-like, column-foot without accessories. Stelidia inconspicuous, triangular, tip subacute. Anther abx. with a ridge; front margin not protruding. Pollinia 2. (After Vermeulen, 1993)
Colours: Sepals and petals pale pink. Lip reddish.
Habitat: Epiphyte in lower montane forest; 800 m.
Flowering time in the wild: September.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-732M.jpg.
Cultivation: Intermediate growing epiphyte.