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Phaius montanus

Phaius montanus

Phaius montanus Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 374

Type: Schlechter 17348 (B, lost); 18256 (B, lost; NB

Terrestrial, erect, 60-80 cm high. Rhizome very short. Roots flexuose, terete, shortly finely villose. Pseudobulbs elliptic, about terete, up to 4 cm long, up to 1.8 cm diam., 4- to 6-leaved. Leaves erect-patent, petiolate; blade elliptic, up to 70 by 12 cm, acuminate, with several nerves, base cuneate, gradually narrowed into the petiole; petiole at the base dilated, sheathing, to 40 cm long. Inflorescence erect, straight or nearly so, to 80 cm long, terete, glabrous; peduncle with a few, distant, long-clasping, acuminate scales; rachis laxly 6- to 15-flowered, erect, to 30 cm long. Floral bracts soon falling off, elliptic, acute, covering the flower when not entirely opened. Flowers patent, becoming pendent. Sepals lanceolate-elliptic, acuminate, glabrous, c. 4 cm long, in the middle 1-1.2 cm wide. Lateral sepals oblique. Petals obliquely ligulate-lanceolate, acute, glabrous, almost as long as the sepals but distinctly narrower, near the middle c. 0.8 cm wide. Lip at the base concave, puberulous, broadly cuneate, in the apical third 3-lobed, c. 4 cm long, when flattened between the apices of the lateral lobes 3 cm wide; lateral lobes erect, obliquely triangular, obtuse; mid-lobe almost square-orbicular, apiculate, 1.2 cm long; in the centre of the lip with two short parallel keels, with a third median keel extending from the middle to the mid-lobe. Column semiterete, just below the apex somewhat dilated, glabrous, c. 2.2 cm long. Anther broadly ovate-cucullate, glabrous; pollinia obliquely clavate. Ovary and pedicel glabrous, clavate, c. 3 cm long. (After Schlechter, 1911-1914)


Sepals and petals outside yellowish, inside brown. Lip white, red near the apex. Column rose-red.

Terrestrial in lower montane forest; 80 to 1600 m.

Malesia (Moluccas, New Guinea), Solomon Islands.

Papua (Indonesia); Papua New Guinea. See map

distribution map

Intermediate growing terrestrial, requires shaded position.

January, February, March, April, May, June, August, September.

  • Smith, J.J., Nova Guinea 12, 3 (1915) 203
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 132, fig. 495
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Collabieae
  • Subtribe Not used
  • Genus Phaius
  • Section Phaius
  • Species Phaius montanus

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Phaius montanus

overview picture

Phaius montanus

Phaius montanus Schltr., plant in situ, with Neville Howcroft, photo E.F. de Vogel

Phaius montanus

Phaius montanus Schltr., flower, photo P.J. Cribb, from Papua (Indonesia), Baliem Valley

Phaius montanus

Phaius montanus Schltr., flower, photo Royal Botanic Garden Edinburgh, based on Edinburgh cult. X62-3314

Phaius montanus

Phaius montanus Schltr., habit, cultivated plant in garden, photo E.F. de Vogel

Phaius montanus

Phaius montanus Schltr., flower, oblique lateral view, photo E.F. de Vogel

Phaius montanus

Phaius montanus Schltr., inflorescence, photo W. Harris, based on Harris 2047

Phaius montanus

Phaius montanus Schltr., plant habit, photo Jon Cara, from Papua New Guinea, Western Highlands Prov., Mount Hagen

Phaius montanus

Phaius montanus Schltr., flower bud, photo Jon Cara, from Papua New Guinea, Western Highlands Prov., Mount Hagen

Phaius montanus

Phaius montanus Schltr., flower, photo Jon Cara, from Papua New Guinea, Western Highlands Prov., Mount Hagen

Phaius montanus

Phaius montanus Schltr., flower and dorsal sepal, drawing J.J. Smith, from Gjellerup 1004

Phaius montanus

Phaius montanus Schltr., lip, lateral sepal, petal, and anther, drawing J.J. Smith, from Gjellerup 1004

Phaius montanus

Phaius montanus Schltr., lip, drawing J.J. Smith, from Gjellerup 1004

Phaius montanus

Phaius montanus Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 132, fig. 495

Phaius montanus

Phaius montanus Schltr., herbarium sheet, Schlechter 19135 (syntype specimen L)