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Ceratostylis humilis

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)

Flower white.

Epiphyte in lowland forest. Altitude 0 m.

Malesia (New Guinea, endemic).

Papua (Indonesia). See map

distribution in New Guinea

Warm growing epiphyte.

June, July.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Eriinae
  • Genus Ceratostylis
  • Section Ceratostylis
  • Species Ceratostylis humilis
  • Smith, J.J., Nova Guinea 8, 1 (1909) 48, t. 17, fig. 54
  • Smith, J.J., Nova Guinea 12, 3 (1915) 265

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Ceratostylis humilis

overview picture

Ceratostylis humilis

Ceratostylis humilis J.J.Sm., drawing J.J. Smith, from Versteeg 1256

Ceratostylis humilis

Ceratostylis humilis J.J.Sm., drawing Natadipoera (?), from Janowsky 120

Ceratostylis humilis

Ceratostylis humilis J.J.Sm., drawing J.J. Smith, from Janowsky 120

Ceratostylis humilis

Ceratostylis humilis J.J.Sm., herbarium sheet, Versteeg 1256, isotype specimen (L)