Bulbophyllum grammopoma

Bulbophyllum grammopoma J.J.Verm., Rheedea 1 (1991) 72, fig. 3

Type: Jongejan cult. 1578 = Leiden cult. 26068 (holo L, alc. only)

Rhizome creeping, 0.15-0.4 cm; all rhizome scales slightly shorter to longer than the internodes. Roots in tufts below each pseudobulb. Pseudobulbs ovoid, 0.8-3.5 cm apart, 0.8-2 by 0.4-1.5 cm, not flattened. Petiole 0.8-1.5 cm. Leaf blade elliptic, 6.5-11 by 0.3-1.5 cm, index 6-22; tip obtuse to acute. Inflorescence 11.5-46 cm, 7-35-flowered; peduncle 7.8-27 cm, bracts 3-4. the longest 0.4-1.2 cm. Rachis erect or arching, 3.8-19 cm. Floral bracts elliptic, 0.25-0.4 cm; tip acute. Pedicel and ovary 0.45-0.9 cm, with the node 0.1 cm from the floral bract. Ovary glabrous. Flowers all open time, moderately opening. Median sepal elliptic, 0.55-0.9 by 0.36-0.65 cm, index 1.2-1.8; tip acun-1inate, margins glabrous or slightly erose, rather thin; surface glabrous. Lateral sepals connate or with the lower, margins (sparsely) touching, oblique, ovate, 1.6-2.4 by 0.2-0.4 cm, index 4.4-8; tip acute, glabrous; otherwise as the median sepal. Petals oblique, ovate to elliptic, 0.2-0.4 by 0.15-0.32 cm, index 1.2-1.4; tip rounded to acute, margins glabrous or slightly erose; rather thin; surface glabrous. Lip curved, general outline ovate, 0.22-0.38 by 0.13-0.22 cm, index 1.5-2 (not spread); tip obtuse to acute, thick, glabrous; adaxially concave towards the base, with an inconspicuously median ridge, with 2 other ridges converging in front in the basal half; abaxially with a distinct, retuse median ridge. Column from ovary to the tip of the stelidia 0.15-0.3 cm; stigma with a distinct tooth at its base, subtriangular. Column-foot without accessories. Stelidia subulate, 0.06-0.12 cm; tip acute. Anther abaxially with a ridge towards its base; front margin not protruding. Pollinia 2. (After Vermeulen, 1993)

Colours: Pseudobulbs suffused with purple. Leaves dark green. Median sepal and petals white, yellow or pale greenish, with purple veins. Lateral sepals yellow, yellowish green or purple except for the base. Lip and column yellow or greenish.

Habitat: Epiphyte in montane forest; 2000-2600 m.

Flowering time in the wild: August.

Distribution: Malesia (New Guinea).

Distribution in New Guinea: Papua New Guinea; see map 96-756M.jpg.

Cultivation: Cool growing epiphyte.