Bulbophyllum lineariflorum J.J.Sm., Bull. Dép. Agric. Indes Néerl. 45 (1911) 9
Type: Bogor cult. (Lorentz Exp., Rachmat 477) s.n. (holo BO?, specimen s.n., no coll.)
Rhizome short. Pseudobulbs close together, very small, depressed globose or subglobose, 0.2 by 0.3-0.4 cm; 1-leaved. Leaf erect, obovate-oblong to oblanceolate, obtuse or sometimes acute, convex, rigidly fleshy, c. 3.2-6.2 by 1.5-2.35 cm; based gradually narrowed; above longitudinally grooved. Inflorescences several on the rhizome, short, 1-flowered; peduncle warty, longitudinally many-grooved, with obliquely thickened, clavate apex, 0.77 cm long, base covered with sheats. Floral bract funnel-shaped, clasping and exceeding the ovary, acuminate, membranous, 0.33 cm long; apex reflexed. Flower medium size, narrow, c. 3.5 by 0.43 cm. Median sepal linear, acute, largely convex, above with several irregularly depressed, shining spots, c. 1.9 by 0.33 cm at the base; base concave. Lateral sepals sublinear, lanceolate-triangular, concave, above flat, very shortly acute, c. 1.75 by 0.5 cm; basal part obtusely angled; margins at the base continuing in the blade of the median sepal; facing margins connate almost to the top; outer margins in the basal part incurved; apex bidentate. Petals very small, incurved, clasping the column, obliquely ovate, acutely acuminate, concave, 0.5 by 0.35 cm; margins hardly finely ciliate. Lip mobile, small, curved, longitudinally grooved, weakly 3-lobed, shortly clawed, not ciliate; lower 1/3rd part subquadrangular-dilated, the base on either side with a small, backwards pointing, falcate, obtuse, auricle, above the base with a small conical callus, underneath convex, upper side with a longitudinal, fairly stout, to the apex vanishing rounded keel, top part hollow, when flattened 0.36 by 0.13 cm, the lateral lobes very small, obtuse, triangular, inside with a cushion-like, obliquely elliptic velutinous blotch; mid-lobe ligulate, acute, 0.26 by 0.06 cm. Column short, 0.17 cm long; stelidia rather large, distinctly exceeding the anther, narrowly triangular, acute; stigma deeply concave, pasi rounded; column-foot very short, broad, truncate, thick, c. 0-05 by 0.13 cm. Anther cucullate, laterally compressed, 0.07 cm long; connective strongly raised; in front extended in a tooth. Pollinia 4, together semiglobose, inner ones very small. Ovary curved, obconical, 6-ribbed, green, densely blackish brown furfuraceous-punctate, 0.2 cm long. (After Smith, 1911)
Colours: Pseudobulbs dark green. Leaf when young entirely, when adult only underneath dirty violet. Inflorescence pale green. Median sepal pale yellow; base yellowish-white. Lateral sepals dark violet. Petals white, lower margin purple, near the base dark purple. Lip dark purple; base white; blotches on widened part white. Column white, margins purplish; stigma pale green; stelidia with purple margins; column-foot with a transversely purple stripe. Anther white. Pollinia yellow. Ovary green; indument dense, blackish brown.
Habitat: Epiphyte in lowland forest; 2145 m.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua (Indonesia); Papua New Guinea; see map 96-1011M.jpg.
Cultivation: Warm growing epiphyte.