Bulbophyllum appressum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 779
Type: Schlechter 19250 (holo B, lost)
Epiphyte, small, appressed to the substrate. Rhizome elongated. Roots filiform, flexuose, glabrous. Pseudobulbs flattened, oblong, 1.5-2 cm apart, 0.5-0.7 by 0.3-0.5 cm; 1-leaved. Leaves more or less appressed to the substrate, elliptic or obovate, obtuse, glabrous, 1.2-1.8 by 0.7-1 cm at or above the middle. Inflorescences 1-flowered, 3-4.5 cm long, slender, filiform, with small peduncle-scales. Floral bracts very small, much shorter than the ovary and pedicel. Flower erect. Sepals oblong-ligulate, obtuse. Median sepal 1.1 cm long. Lateral sepals almost twice as long. Petals ligulate, 0.23 cm long; apex tricuspidate, cusps subulate, the median one twice as long as the lateral ones. Lip somewhat fleshy, glabrous, elongated in a long, subulate, obtuse, to the apex somewhat dilated extension, 0.9 cm long; base elliptic-curved; margins minutely crenulate-serrulate. Column short; stelidia subulate; column-foot somewhat incurved. Pedicel and ovary very long, glabrous, 3-4 cm long. (After Schlechter, 1913)
Colours: Flower yellow, densely dotted brown.
Habitat: Epiphyte in lowland forest.
Flowering time in the wild: March, April.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-127M.jpg.
Cultivation: Warm growing epiphyte.