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Ceratostylis longifolia

Ceratostylis longifolia

Ceratostylis longifolia J.J.Sm., Bull. Dép. Agric. Indes Néerl. 39 (1910) 6

Type: Römer, von 1291 (holo BO; iso L)


  • Ceratostylis purpurea P.Royen, Alp. Fl. New Guinea 2 (1979) 476, fig. 165
    - Type: Brass 11009 (holo BM; iso L)

Stems elongated, terete, 21.5-23.5 cm long. Leaf elongated, linear, apex conduplicate, acute, above on either side of the grooved mid-rib convex, 16.5-17.5 cm long, 1-1.1 cm wide. Inflorescences fascicled, many-flowered, peduncle short, 1-flowered, pilose, 0.2-0.28 cm long. Floral bracts rather large, at the base funnel-shaped, ventricose, acutely conical-acuminate, 0.45 cm long. Flowers medium-sized, 0.95 cm long. Sepals in the basal part parallel, at the base sparsely pilose outside. Median sepal in the middle recurved, oblong, obtuse, 3-nerved, 0.45 cm long, 0.2 cm wide. Lateral sepals obliquely triangular, obtuse, 3-nerved, 0.43 cm long, to the apex of the mentum 0.88 cm long, 0.2 cm wide with a narrow basal part which is slightly longer than the column-foot, decurrent on the column-foot; mentum pointing backwards, straight, gradually clavate-inflated, obtuse, dorsally near the apex with a longitudinal concavity, 0.5 cm long, at the apex 0.15 cm wide. Petals narrowly rhomboid, acute, 1-nerved, 0.4 cm long, 0.16 cm wide. Lip spathulate, 0.825 cm long, claw linear, inside with 2 puberulous ribs, at the base slightly extended beyond the point of attachment, truncate-retuse, blade concave, indistinctly 3-lobed, 0.25 cm wide, lateral lobes erect, rounded, mid-lobe ovate, strongly thickened, broadly obtuse, convex on either side, inside at the base with a decurrent rib, longitudinally grooved below, 0.2 cm long, 0.1 75 cm wide. Column short, bipartite, 0.2 cm long, arms broad, broadly obtuse. Anther cucullate, apex truncate-obtuse, 0.08 cm wide. Column-foot, pointing backwards, straight, linear, 0.4 cm long. Ovary and pedicel pubescent, 0.5 cm long. (After Smith, 1911)

Flower violet.

Epiphyte in upper montane forest. Altitude 3200 m.

Malesia (New Guinea, endemic).

Papua (Indonesia); Papua New Guinea. See map

distribution in New Guinea

Cool growing epiphyte.

July, December.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Eriinae
  • Genus Ceratostylis
  • Section Ceratostylis
  • Species Ceratostylis longifolia
  • Smith, J.J., Nova Guinea 8, 3 (1911) 546, t. 87B

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Ceratostylis longifolia

Ceratostylis longifolia J.J.Sm., drawing Pieter van Royen, in P.Royen, Alp. Fl. New Guinea 2 (1979) 476, t. 165, based on Brass 11009

Ceratostylis longifolia

Ceratostylis longifolia J.J.Sm., drawing J.J. Smith, from von Römer 1291

Ceratostylis longifolia

Ceratostylis longifolia J.J.Sm., herbarium sheet, Roemer, von 1291, isotype specimen (L)

Ceratostylis longifolia

Ceratostylis purpurea P.Royen, herbarium sheet, Brass 11009, isotype specimen (L)