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Ceratostylis triloba

Ceratostylis triloba

Ceratostylis triloba Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 254

Type: Schlechter 18595 (holo B, lost; iso BO, K)

Epiphytic, erect, caespitose, 30-40 cm high. Rhizome very short. Roots filiform, elongated, flexuose, puberulous. Stems erect, slender, terete, glabrous, at the base covered with large, acuminate sheaths with beautiful reticulate nerves, 1-leaved, 15-20 cm long, 2.25-2.50 mm across. Leaves erect-patent, linear-ligulate, acute, at the base narrowed into a short petiole, glabrous, coriaceous, 11-16 cm long, near the middle 0.5-0.9 cm wide. Inflorescences several arranged into a terminal capitulum, covered with lanceolate, acute or acuminate scales. Bracts very small, ovate, apiculate, hyaline. Flowers erect-patent. Sepals ligulate-oblong, narrowly obtuse, at the base sparsely puberulous, 6.5 mm long. Lateral sepals oblique, at the base along the anterior margin conspicuously dilated and connate; mentum sac-like, obliquely oblong, obtuse, puberulous, almost 0.3 cm long. Petals obliquely linear-lanceolate, acute or acuminate, glabrous, a little shorter than the sepals. Lip in basal part wedge-ligulate, margin minutely ciliolate, above the middle 3-lobed, 0.9 cm long; lateral lobes very small, short, dentiform, obtuse; mid-lobe much larger, oblong, obtuse, in apical half carnose-thickened, with two thin, minutely ciliolate, parallel lamellae, arising above the base, extending to and decurrent on the base of the mid-lobe. Column short scarcely extending to the basal third of the lip, glabrous, arms large, obliquely oblong, blunt; foot short. Anther reniformi, minutely apiculate, glabrous. Ovary cylindrical, puberulous, subsessile, about 0.4 cm long. (After Schlechter, 1911-1914).

Flower reddish, petals whitish, lip apex yellow.

Epiphyte in lower montane forest. Altitude 1400 m.

Malesia (New Guinea, endemic).

Papua New Guinea. See map

distribution in New Guinea

Intermediate growing epiphyte, keep in light shade.


  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Eriinae
  • Genus Ceratostylis
  • Section Ceratostylis
  • Species Ceratostylis triloba
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 93, fig. 345

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Ceratostylis triloba

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Ceratostylis triloba

Ceratostylis triloba Schltr., from Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 93, fig. 345