Dendrobium brachycentrum Ridl., Trans. Linn. Soc. London, Bot. 9 (1916) 169.
Type: Kloss s.n. (Camp 2 to 3, 500 to 2500 ft.) (holo BM).
Stems slender, quadrangular, c. 23 cm by 2 mm. Leaves lanceolate, 2 by 0.7-1 cm, rather thin-textured, keeled below, margins denticulate, apex acute, mucronulate. Inflorescences arising near the apex of leafless stems, racemose, short, c. 12-flowered. Floral bracts ovate, 0.2 cm long, apex cuspidate. Pedicel and ovary 1.4 cm long. Flowers c. 1 cm long. Dorsal sepal narrowly elliptic, 0.6 cm by 0.3 mm, apex obtuse. Lateral sepals oblong, 0.6 cm by 0.4 mm, mentum sac-shaped, 0.4 cm long, obtuse. Petals hardly narrower than the dorsal sepal, linear-oblong. Lip spathulate, cucullate, 1 cm long, 0.4 mm wide at apex, apex rounded, denticulate. Column with oblong, erect, obtuse stelidia; column-foot straight. Anther skull-shaped, smooth.
(after Ridley, 1916).
Colours: Flower orange-red.
Habitat: Epiphyte in hill forest. Altitude 150-750 m.
Flowering time in the wild: Not recorded.
Distribution: New Guinea (endemic).
Distribution in New Guinea: Papua (Timika Mimika Regency).
Notes: The flowers, if correctly described, are very small for a member of the Calyptrochilus group.
Cultivation: Warm growing epiphyte.