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Rhomboda atrorubens

Rhomboda atrorubens

Rhomboda atrorubens (Schltr.) Ormerod, Orchadian 11 (1995) 334

Synonyms:

  • Zeuxine atrorubens Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1911) 82
    - Type: Schlechter 18053 (holo B, lost; iso BO, E, K, L 2x, NSW)
  • Zeuxine leucotaenia Schltr., Bot. Jahrb. Syst. 58 (1922) 57
    - Type: Ledermann 8907a (holo B, lost)
  • Zeuxine leucotaenia Schltr. var. floribunda Schltr., Bot. Jahrb. Syst. 58 (1922) 58
    - Type: Ledermann 8843a; 10382 (syn B, lost)

Basionym: Zeuxine atrorubens

Terrestrial, erect, slender, 19-25 cm high. Rhizome decumbent, stem-like; roots elongated, flexuose, puberulous. Stem 3- to 5-leaved, terete, glabrous. Leaves erect-patent, petiolate; blade obliquely ovate-lanceolate, acute, minutely apiculate, 3-5 by 1.4-2.3 cm; petiole dilated at the base sheathing, 1-2 cm long. Inflorescence laxly 4- to 8-flowered, erect; peduncle with a few, distant, bract-like scales, sparsely glandulose-puberulous; rachis up to 7 cm long. Floral bracts ovate-lanceolate, acuminate, with ciliate margins, about half as long as the ovary. Flowers erect-patent, glabrous. Median sepal broadly ovate, acuminate, 0.4 cm long. Lateral sepals obliquely ovate, acuminate, a little longer than the median sepal. Petals semiovate-falcate, shortly acuminate, along the outer margin near the middle distinctly dilated, about as long as the median sepal and adhering to it along their inner margin. Lip in outline ovoid-cucullate, as long as the petals, when flattened almost square, near the apex abruptly contracted and then broadened into a very small, broadly elliptic, apiculate lobe, lip inside at the base with two small obovate, almost stalked glands, the mid-vein somewhat swollen, above the middle on either side with a very small, low lamella. Column suborbicular, glabrous; rostellum very small bifid-bicuspidate, in front with two large lamellae. Ovary cylindrical, glabrous, 0.8 cm long. (After Schlechter, 1911-1914)


Leaves dark purple-brown above, cherry-red below. Sepals brown-red, petals and lip transparent salmon-pink, terminal lobe of the lip white.

Terrestrial in lower montane forest; 9 to 1410 m.

Malesia (New Guinea).

Papua New Guinea. See map

distribution map

Intermediate growing terrestrial, requires shaded position.

January, July, September, December.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 33, fig. 112, as Zeuxine atrorubens Schltr.
  • Family Orchidaceae
  • Subfamily Orchidoideae
  • Tribe Cranichideae
  • Subtribe Goodyerinae
  • Genus Rhomboda
  • Species Rhomboda atrorubens

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Rhomboda atrorubens

overview picture

Rhomboda atrorubens

Zeuxine atrorubens Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 33, fig. 112

Rhomboda atrorubens

Zeuxine atrorubens Schltr., herbarium sheet, Schlechter 18053 (isotype specimen L)

Rhomboda atrorubens

Zeuxine atrorubens Schltr., herbarium sheet, Schlechter 18053 (isotype specimen L)