Ceratostylis humilis

Ceratostylis humilis J.J.Sm., Bull. Dép. Agric. Indes Néerl. 19 (1908) 11

Type: Versteeg 1256 (holo BO; iso L)

Small, growing in tufts. Rhizome short. Stems erect, terete, 2.5-5 cm, long, 0.1 5 cm thick, apex 1-leaved, at the base covered with sheaths. Leaf erect, subterete, above broadly obtusely channelled, acute, 1-2 cm long, 0.17-0.2 cm wide; sheath short. Inflorescence many-flowered, capitate, surrounded by dry sheaths; peduncles fascicled, 0.14 cm long, 1-flowered. Floral bracts convolute, clasping and surpassing the ovary, broadly triangular, acuminate, 0.27 cm long. Flowers small, 0.35 cm long. Sepals parallel to the petals. Median sepal ovate, somewhat acute, concave, 3-nerved, 0.26 cm long, 0.14 cm wide. Lateral sepals obliquely ovate-triangular, somewhat acute, concave, 3-nerved, dorsally very sparsely puberulous, 0.26 cm long, at the base 0.28 cm wide, obliquely dilated, forming a backwards pointing, saccate, rounded, dorsally compressed, 0.15 cm long, 0.16 cm wide mentum. Petals elliptic, narrowly obtuse, 1-nerved 0.24 cm long, about 0.1 cm wide. Lip slightly wavy, shortly clawed, inside with 3 puberulous ribs, in total 0.28 cm long, claw at the base truncate, somewhat retuse, somewhat extended beyond the apex of the column-foot, 0.06 cm, long, blade ovate, concave, apex thickened, obtuse, densely papillose, 0.14 cm wide. Column very short, 0.06 cm long, arms ovate-triangular, obtuse, outside convex, indistinctly keeled. Anther semiorbicular. Column-foot pointing backwards, slender, 0.06 cm long. Ovary pubescent, 0.16 cm long. (After Smith, 1909)

Colours: Flower white.

Habitat: Epiphyte in lowland forest. Altitude 0 m.

Flowering time in the wild: June, July.

Distribution: Malesia (New Guinea, endemic).

Distribution in New Guinea: Papua (Indonesia). See map: 125-64M.JPG

Cultivation: Warm growing epiphyte.