Genus Dendrobium section Cadetia subsection Pterocadetia
Dendrobium section Cadetia subection Pterocadetia ined.
Synonyms:
- Genus Cadetia sect. Pterocadetia Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 424. Type species: Cadetia trigonocarpa Schltr.
Rhizome short. Pseudobulbs slender, sharply (rarely more indistinctly) 4-angled to 4-winged. Inflorescences arising from the leaf-axil, their base enveloped by a spathe. Flowers lasting at least several days. The midlobe of the lip sometimes with low keels. Ovary glabrous, 3-angular to V-shaped, rarely 6-ribbed.
Moluccas, New Guinea, Vanuatu. About 12 species; in New Guinea c. 8 species.
Epiphytes in lowland forest and savannah; only Dendrobium arfakense J.J.Sm. has been found in montane forest at 1900 m above sea level.
- Family Orchidaceae
- Subfamily Epidendroideae
- Tribe Dendrobieae
- Subtribe Dendrobiinae
- Genus Dendrobium
- Section Cadetia
- Subsection Pterocadetia
This section is usually easy to recognise by the sharply 4-angled to 4-winged stems with concave sides; only in Dendrobium danipense Ormerod this is said to be less apparent. The species of this subsection often have more colourful flowers than those of subsections Cadetia and Sarcocadetia, frequently with purplish or yellow markings on the midlobe of the lip.
In New Guinea Dendrobium section Cadetia subsection Pterocadetia contains the following 14 species:
(The position of D. cadetia and D. heteroideum in Pterocadetia is uncertain)
Dendrobium arfakense
Dendrobium cadetia
Dendrobium danipense
Dendrobium doormanii
Dendrobium heteroideum
Dendrobium recurvatum
Dendrobium rumphiae
Dendrobium stenocentrum
Dendrobium subfalcatum
Dendrobium subradiatum
Dendrobium takadui
Dendrobium transversilobum
Dendrobium triquetrum
Dendrobium versteegii
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Genus Dendrobium section Cadetia subsection Pterocadetia
Dendrobium versteegii J.J.Sm., inflorescence, photo A. Schuiteman, based on Leiden cult. 950205
Genus Dendrobium section Cadetia subsection Pterocadetia
Dendrobium transversilobum J.J.Sm.., habit, photo A. Schuiteman, based on Leiden cult. 950187