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Phreatia altigena

Phreatia altigena

Phreatia altigena Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 185

Type: Schlechter 13989 (holo B, lost)

Epiphytic, erect, almost stemless, c. 10 cm high; roots filiform, elongated, flexuose, glabrous. Stem very short, entirely hidden by the leaf-sheaths. Leaves distichous, linear, subobtuse, somewhat narrowed towards the base, glabrous, coriaceous, erect-patent, 7-8 cm long, near the middle 0.3-0.4 cm wide; sheaths dilated, clasping, 0.7- 0.8 cm long. Inflorescence erect, unbranched, longer or shorter than the leaves, at the base with a few small peduncle-scales; rachis elongated, to 5 cm long, densely many-flowered, c. 0.4 cm diam. across the flowers. Floral bracts patent, lanceolate, acuminate, glabrous, usually a little longer than the pedicellate ovary. Median sepal ovate, obtuse, glabrous, c. 0.15 cm long. Lateral sepals oblique, broadly ovate, obtuse, along the front margins towards the base dilated, glabrous, as long as the median sepal. Petals obliquely oblong, shortly acuminate, glabrous, somewhat smaller than the sepals. Lip oblong-elliptic, very shortly and obtusely apiculate, thickened along the mid-vein, with subundulate margins, 0.15 cm long. Column short; rostellum and clinandrium low. Anther rounded; ovary shortly pedicellate, clavate, glabrous, c. 0.15 cm long.
(After Schlechter, 1905)

Flowers pure white.

Epiphyte in lower montane forest; 1500 m.

Malesia (New Guinea).

Papua New Guinea. See map

distribution map

Intermediate growing epiphyte.


  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 915
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 319, fig. 1228
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Thelasiinae
  • Genus Phreatia
  • Section Rhizophyllum
  • Species Phreatia altigena

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Phreatia altigena

Phreatia altigena Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 319, fig. 1228