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Dendrobium wisselense

Dendrobium wisselense

Dendrobium wisselense P.J.Cribb, Orchadian 6 (1981) 279, fig. 2.

Type: Eyma 5385 (holo L, iso BO).

Synonyms:

  • Sayeria wisselensis (P.J.Cribb) Rauschert, Feddes Repert. 94 (1983) 468.

An erect, epiphytic or terrestrial herb to about 38 cm tall. Pseudobulbs slenderly clavate, 2-5-noded, 7-22 cm long, up to 8 mm diam., 2-leaved at the apex. Leaves coriaceous, suberect, linear to narrowly elliptic-oblong, minutely emarginate at rounded apex, up to 8-5 by 1.1.2 cm. Inflorescence erect or suberect, 8-16 cm long, 8-20-flowered; peduncle and rachis terete, slender; bracts lanceolate, acuminate, 2-3 mm long. Ovary verruculose, at right angles to the pedicel. Dorsal sepal lanceolate, acuminate, 12-13.5 by 3.5 mm; lateral sepals obliquely lanceolate, acuminate, 12-14 by 6 mm. Petals narrowly lanceolate, acuminate, 11-13.5 by 3 mm. Lip very obscurely 3-lobed, obovate-spathulate, apiculate, 14 by 7.5 mm; callus linear, 3-ridged, half the length of the lip, mid-ridge smaller than side-ridges. Column 2 mm long; filament 0.6 mm long; anther cap verruculose.
(after Cribb, 1983).

(after Cribb, 1983).


Flower cream colour.

Epiphyte in primary Castanopsis-Nothofagus forest. Altitude 1100 to 1750 m.

New Guinea.

Papua (Nabire and Sorong Regencies).

Map: Dendrobium wisselense P.J.Cribb, distribution map, redrawn from P. Cribb, Kew Bull. 38 (1983) 242, map 3 (with new record added).

Cool growing (requirements not known).

November, January.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Dendrobiinae
  • Genus Dendrobium
  • Section Latouria
  • Species Dendrobium wisselense
  • Cribb, P.J. 1983. Kew Bull. 38: 274, map 3.

Dendrobium wisselense P.J.Cribb is readily distinguished from Dendrobium kauldorumii T.M.Reeve by its linear to narrowly elliptic-oblong leaves less than 1.2 cm broad and by its entire or sub-entire somewhat spathulate, apiculate lip with a three-ridged callus.

Dendrobium wisselense P.J.Cribb is also close to Dendrobium rariflorum J.J.Sm., which differs in having one-leafed pseudobulbs and a distinctly 3-lobed lip with an elliptic-angular midlobe.


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Dendrobium wisselense

Dendrobium wisselense P.J.Cribb, drawing by P.J. Cribb in Orchadian 6 (1981) 281, fig. 2, in part

Dendrobium wisselense

Dendrobium wisselense P.J.Cribb, drawing by P.J. Cribb in Orchadian 6 (1981) 281, fig. 2

Dendrobium wisselense

Dendrobium wisselense P.J.Cribb, type specimen: Eyma 5385 (holo L)