Species Information - Bulbophyllum frustrans

Bulbophyllum frustrans J.J.Sm., Bull. Dép. Agric. Indes Néerl. 45 (1911) 8

Type: Bogor cult. (Exp. Lorentz, Djibdja 604) s.n. (holo BO, n.v.; ?iso L, probable, s.n., no coll.)

Synonyms:

• Hapalochilus frustrans (J.J.Sm.) Garay & W.Kittr., Bot. Mus. Leafl. 30 (1985) 188 (54)

Rhizome elongated, pendulous, branched, terete, c. 10 cm long, below the pseudobulbs 0.23 cm diam., initially covered with tubular, acutely acuminate, membranous sheaths to c. 1 cm long; upper ones long persistent. Pseudobulbs c. 1.5-2.2 cm apart, appressed to or making an acute angle with the rhizome, oblong, laterally compressed, to 0.9 by 0.38 cm; underneath broadly concave, further longitudinally grooved; 1-leaved. Leaf lanceolate, hardly ovate, gradually somewhat acuminate, acute, 0.5-6 by 1.2-2 cm; base cuneate-narrowed; margins and apex recurved; midrib above grooved. Inflorescences in fascicles from the nodes of the rhizome, very short, 1-flowered; peduncle 0.35 cm long, entirely covered by small, tubular, acuminate, membranous, somewhat shiny sheaths. Flower very small, 0.65 cm wide, with reflexed sepals. Median sepal ovate-oblong, obtuse, acute apiculate; base convex; above concave; 3-nerved, 0.5 by 0.24 cm. Lateral sepals obliquely ovate, abruptly subulate-apiculate, convex, 0.54 by 0.3 cm; base 3-nerved, above concave. Petals very small, ovate-rhombic, acute, concave, upper side translucent punctate, c. 0-07 5 by 0.05 cm. Lip immobile, porrect, curved upwards, thick, oblong, 0.25 by 0.1 cm; basal half concave, its base with erect, short, rounded lateral lobes, near the back with a transverse lamella; top part convex, obtuse; underneath convex with a longitudinal groove; except for the cavity verrucose. Column rather slender, curved, 0.18 cm long; clinandrium dilated, dorsally deeply notched, lobes quadrangular laciniate; column-foot short, wart-shaped. Anther cucullate; connective thickened, c 0.03 cm long. Pollinia narrow. Ovary 0.16 cm long. (After Smith, 1911)

---