Prev Taxon: Genus Bulbophyllum section Brachystachyae
Current Genus: Genus Bulbophyllum section Cirrhopetalum
Next Taxon: Genus Bulbophyllum section Codonosiphon
Prev Species: Bulbophyllum gracillimum
Bulbophyllum longiflorum Thouars, Hist. Orchid. (1822) t. 97
Type: Thouars s.n. (Mauritius) (holo P; iso L)
Epiphyte, creeping. Rhizome rooting. Roots filiform, glabrous. Pseudobulbs obliquely ovoid, 4-angular, 1.5-2.3 by 0.8-1.3 cm below the middle; 1-leaved. Leaf erect, oblong-ligulate, obtuse, 11-18 by 2.2-3.6 cm near the middle; base gradually narrowed into a short petiole. Inflorescence erect, slender, with a few small peduncle-scales, to 24 cm high. Inflorescence 7-12-flowered, umbelliform. Floral bracts lanceolate, acuminate, many times shorter than the pedicellate ovary. Median sepal orbicular, including the apical thread 1.4 cm long; apex sparsely ciliate; apical thread antenna-like swollen, very long. Lateral sepals oblique ligulate, subacute, glabrous, 3.3 cm long; outer margins connate. Petals obliquely falcate-lanceolate, 0.9 cm long; margins with irregular subulate cilii; apex extended into a bristle-hair. Lip curved, fleshy, lanceolate-tongue-shaped, obtuse, glabrous, 0.7 cm long; base quadrangular; in basal half on upper side 2-ribbed. Column short; stelidia at the base obliquely rhombic, aristate, falcate; column-foot incurved. Anther helmet shaped-cucullate, in front notched, glabrous. Pedicel and ovary slender, glabrous, c. 1.6 cm long. (After Schlechter, 1913)
Flower yellowish with close-set red dots. Lateral sepals whitish to the base.
Epiphyte in hill forest; 150-2320 m.
Malesia (Peninsular Malaysia, Sumatra, Java, Borneo, Sulawesi, Moluccas, New Guinea, Philippines), ?Laos, Vietnam, Africa, Madagascar, trop. Asia, Australia, ?Solomon Islands, Vanuatu, Fiji, Guam, Tahiti.
January, April, May, June, July, August, October, November, December.