Current Genus: Genus Dendrobium section Cadetia subsection Pterocadetia
Dendrobium takadui
Dendrobium takadui J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 8 (1912) 18.
Type: Schlechter 17422 (B, lost); 19344 (B, lost; AMES, BM, BO, G, K, L, MO, NSW).
Synonyms:
- Cadetia takadui Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 434; 21 (1923) t. 150
Rhizome very short. Stems crowded, erect, slender, narrowing to the base, sharply 4-angled, 4-10 cm by 2.5-3 mm, 1-leaved. Leaves erect to suberect, subfalcate-ligulate, 5.5-11 by 0.7-1.3 cm, apex narrowly obtuse, minutely bilobulate. Inflorescences terminal from the leaf axil, 1-flowered; spathe 1-1.5 cm long, shortly acuminate. Pedicel and ovary 1.2 cm long, 3-ribbed. Flower c. 1 cm across. Dorsal sepal oblong, 0.55 cm long, apex obtuse. Lateral sepals obliquely oblong, mentum spur-like, cylindrical, 0.35 cm long, subacute. Petals obliquely linear, apex acuminate. Lip with a linear, 0.35 cm long basal claw, 3-lobed in basal third of the blade, the blade 0.45 by 0.43 cm, on the disk with two short parallel lamellae; lateral lobes obliquely oblong, obtuse; midlobe much larger, reniform, margins thickened, weakly undulate, apex retuse. Column short, stelidia obtuse, filament shorter, triangular, tooth-like.
(after Schlechter, 1912).
Flower white, midlobe of the lip red.
Epiphyte in hill forest. Altitude 400 to 850 m.
New Guinea (endemic).
Papua New Guinea (Sandaun and Morobe Provinces).
Warm growing epiphyte.
March, May, September.
Dendrobium takadui J.J.Sm. (as Cadetia takedui) was named after Takadu, a man from New Ireland, who was one of Schlechter's assistants during his last expedition to New Guinea (1907-1909).
In Dendrobium sect Cadetia subsect. Pterocadetia the species Dendrobium danipense, Cadetia subfalcata and Cadetia takadui are quite similar in their flowers. They differ that in Dendrobium takadui the mentum is relatively long and acute, the hypochile is inside glabrous and has two short parallel lamellae, and the epichile has no keels, in Dendrobium danipense the mentum is relatively short, the hypochile inside and the base of the epichile are minutely hairy and the epichile has no keels, and in Dendrobium subfalcatum J.J.Sm. the mentum is relatively short, the hypochile inside has longitudinal hairy bands and the epichile has in the basal part 5 short thick keels.
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Dendrobium takadui
Dendrobium takadui J.J.Sm. (as Cadetia takadui Schltr.), drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 150, fig. 563
Dendrobium takadui
Dendrobium takadui J.J.Sm. (as Cadetia takadui Schltr.), type specimen: Schlechter 19344 (iso L)