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Dendrobium wantipiense

Dendrobium wantipiense

Dendrobium wantipiense Ormerod, Orchadian 17 (2014) 522, fig.

Type: Darbyshire & Hoogland 8312 (holo A).

Epiphytic herb. Roots terete, c. 0.1 cm thick. Pseudobulbs 1-leaved, caespitose, 27.5-31.0 cm long; base obliquely swollen, 5 by 0.5 -0.7 cm, enclosed by a number of fibrous sheaths; median part long, terete. 0.2-0.35 cm thick; apex shortly dilated, 0.90- 1.05 cm wide. Leaf oblong, 12.1-13 by 2.9-3.2 cm; base conduplicate; apex acute. Inflorescence pseudoterminal, 2-3-flowered; peduncle slender, c. 4 cm long. Pedicel with ovary terete, c. 2.5 cm long. Median sepal linear-lanceolate, c. 2.35 by 0.4 cm; apex acute, 5-nerved. Lateral sepals obliquely linear-lanceolate, c. 2.32 by 0.64 cm; apex subacute, 5-nerved; mentum broadly conical,obtuse, c. 0.55 cm. Petals linear­ lanceolate, 2.1 by 0.15 cm wide; apex acute; 4-nerved. Lip 3-lobed, 2-keeled, c. 1.28-1.29 by 0.4 cm; hypochile obovate-elliptic, 0.2 cm long, c. 0.6 by 0.4 cm, its keels plate-like and highest in front, its apex with or without a triangular sidelobe; epichile spathulate, 0.68-0.69 by 0.6 cm, with acute apex, its claw 0.2 cm long with undulate or smooth margin, median with a linear­lanceolate, possibly minutely puberulent ridge on basal 2/3rd of epichile. Column obliquely conical, truncate, c. 0.21 cm long;column foot c. 0.5 cm long.
(after Ormerod 2014)


Sheaths enclosing the pseudobulb base brown. Pseudobulb apex yellow when dried . Flowers "wine red" (probably their post anthesis colour, in anthesis probably white).

On uppermost branches of a tall tree. Altitude 200 m.

Malesia (New Guinea, endemic).

New Guinea, Sandaun Prov.

Warm growing epiphyte.

July

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Dendrobiinae
  • Genus Dendrobium
  • Section Mekynosepalum
  • Species Dendrobium wantipiense

The flowers of the type of Dendrobium wantipiense Ormerod have an asymmetrically developed lip.


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Dendrobium wantipiense

Dendrobium wantipiense Ormerod, drawing by Paul Ormerod in Orchadian 17 (2014) 522, fig.