Bulbophyllum quadrichaete Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 789
Type: Schlechter 17963 (holo B, lost; iso K); 19780 (para B, lost); 20078 (para B, lost)
Epiphyte, very small. Rhizome very short. Roots filiform, flexuose, glabrous. Pseudobulbs oblongoid, 0.15-0.2 cm high; 1-leaved. Leaf erect, ligulate, subobtuse, glabrous, 0.7-2 by 0.25-0.35 cm near the middle; base gradually somewhat attenuate. Inflorescences 1-flowered, 1.5-2.5 cm long, very thin, with a few small peduncle-scales. Floral bracts minute, much shorter than the ovary and pedicel. Flower erect. Sepals at the base ovate, aristate-narrowly acuminate, glabrous, 0.45 cm long. Lateral sepals oblique, hardly broader than the median sepal. Petals obliquely lanceolate-ligulate, obtuse, subfalcate, glabrous, 0.18 cm long. Lip aristate-elongated, curved, somewhat fleshy, about as long as the sepals; base quadrangular. Column short, glabrous; stelidia subulate; column-foot incurved. Anther helmet shaped-cucullate, umbonate, glabrous. Pedicel and ovary very slender, glabrous, 0.6-0.7 cm long. (After Schlechter, 1913)
Colours: Flower light yellow with brown stripes. Petals purplish brown-red. Lip light brown.
Habitat: Epiphyte in lower montane forest; 800-2250 m.
Flowering time in the wild: April, June, July, August, September.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-1528M.jpg.
Cultivation: Intermediate growing epiphyte.