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Phreatia bicostata

Phreatia bicostata

Phreatia bicostata J.J.Sm., Bull. Dép. Agric. Indes Néerl. 19 (1908) 31

Type: Versteeg 1696 (holo BO)

Pseudobulbs close together, 2-leaved. Leaves very unequal in size. Peduncle-scales tubular, long subulate-acuminate. Rachis many-flowered, c. 11 cm long. Floral bracts at the base dilated, long subulate-acuminate, c. 0.3-O.6 cm long. Median sepal reflexed, apex recurved, ovate-triangular, subacute, strongly convex, 0.23 by 0.13 cm. Lateral sepals decurrent along the column-foot, obliquely triangular, subacute, c. 0.2 cm long, at the base 0.18 cm wide. Petals obliquely oblong-ovate, obtuse, at the base shortly clawed-narrowed, somewhat falcate, 0.18 cm long, just about 0.1 cm wide. Lip clawed, concave, when spread 0.17 by 0.2 cm, claw broadly oblong-linear, concave, at the base on either side with a low-triangular, obtuse patent lobule, inside with 2 longitudinal ribs; blade vertical, sagittate-crescent-shaped, in front rounded, apex with a low rounded acuminate lobule; basal lobules pointing downwards, obliquely subtriangular, obtuse. Column very short, 0.13 cm long; clinandrium deeply concave; rostellum bifid, with linear segments; column-foot parallel to the ovary, 0.1 cm long, with a long, free, incurved, narrowed apex. Anther broadly cordate, obtuse, connective swollen. Ovary pyriform, verrucose, 0.15 cm long; pedicel much thinner than the ovary, 0.2 cm long.
(After Smith, 1909, and Smith, 1916)


Flower white.

Epiphyte in montane forest; 1750 to 2600 m.

Malesia (New Guinea).

Papua (Indonesia). See map

distribution map

Cool growing epiphyte.

July, September, October, November, December.

  • Smith, J.J., Nova Guinea 8, 1 (1909) 105, t. 35, fig. 116
  • Smith, J.J., Nova Guinea 12, 1 (1913) 97
  • Smith, J.J., Nova Guinea 12, 4 (1916) 434
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Thelasiinae
  • Genus Phreatia
  • Section Bulbophreatia
  • Species Phreatia bicostata

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Phreatia bicostata

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