Bulbophyllum fonsflorum J.J.Verm., Blumea 34 (1990) 499, fig. 1
Type: Reeve 598 (holo L; iso K, LAE)
Rhizome creeping, 0.18-0.25 cm; all rhizome scales longer than the internodes. Roots in tufts below each pseudobulb. Pseudobulbs ovoid, 1-2 cm apart, 0.6-1.5 by 0.4-0.8 cm, not flattened. Petiole 25-40 mm. Leaf blade elliptic to obovate, 5.2-11 by 1.4-2.3 cm, index 3.5-6; tip acute to acuminate. Inflorescence 27-34 cm, 11-28-flowered; peduncle 16-17 cm. Floral bracts 4-5. the longest 7-9 mm. Rachis pendulous, 10-17 cm. Floral bracts ovate, 4-6 tom; tip acute to acuminate. Pedicel and ovary 9-20 mm, with the node 0.3 cm from the floral bract. Flowers many open time, moderately opening. Median sepal ovate, 55-85 by 5-7 mm, index 11-14; tip caudate; rather thin, glabrous. Lateral sepals free, oblique, 65-120 by 4-5.5 mm, index 17-30. otherwise as the median sepal. Petals oblique, 5.5-7 by 2.8-3.5 mm, index 2-2.2; tip obtuse to subacute; otherwise as the median sepal. Lip curved, general outline ovate, 5-6 by 2-2.5 mm, index c. 2.5 (not spread); tip rounded; rather thick, glabrous; adaxially concave near the base, with 2 parallel ridges close to the midrib approximately half-way, abaxially with a retuse median ridge. Column from ovary to the tip of the stelidia 1.2-1.5 mm; stigma protruding at its base, triangular, Column-foot without accessories. Stelidia inconspicuously; tip rounded. Anther abaxially with a very distinct ridge towards its tip; front margin not protruding. Pollinia 2. (After Vermeulen, 1993)
Colours: Pseudobulbs brownish. Leaves green, often suffused with purple. Inflorescence and rachis purple. Sepals and petals white, with purple veins. Lip creamy yellow, suffused with pinkish purple in the centre.
Habitat: Epiphyte in montane forest; 2250-2430 m.
Flowering time in the wild: January, February.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-675M.jpg.
Cultivation: Cool growing epiphyte.