Diplocaulobium cervicaliferum (J.J.Sm.) P.F.Hunt & Summerh., Taxon 10 (1961) 108.
Basionym: Dendrobium cervicaliferum.
Pseudobulbs crowded, 1-leaved, at the base fusiform, 1.7-2 cm long, upper part much narrower, 1.7-2.5 cm long. Leaves elliptic-lanceolate, 4.8-5.3 by 1.3-1.6 cm, apex almost equally bidentate. Inflorescences 1-flowered, spathe 1.7-1.9 cm long; peduncle 0.8-1.2 cm long. Pedicel and ovary 1.3-1.4 cm long. Flower c. 4 cm across. Dorsal sepal linear-caudate, triangular at base, 2.5 cm by 3 mm. Lateral sepals linear-caudate, obliquely widened at base, 2.7 cm by 6 mm, mentum c. 0.57 cm long. Petals linear-caudate, lanceolate at base, 2.8 cm by 1.8 mm. Lip 3-lobed, 1.2 by 0.57 cm, with two papillose keels, towards the apex between the keels pubescent and with an oblong callus covered with clavate hairs; lateral lobes rounded; midlobe rhombic, 0.5 by 0.26 cm. Column 0.25 cm long.
(after Smith, 1916).
Colours: Sepals and petals white, at the base greenish yellow, the tips light brown-red, lip white, the lateral lobes with violet-red transverse stripes, midlobe yellow, column yellow.
Habitat: Epiphyte in hill forest on limestone and basalt. Altitude 400 m.
Flowering time in the wild: November.
Distribution: New Guinea (endemic).
Distribution in New Guinea: Papua (Jayapura Regency).
Notes: Diplocaulobium cervicaliferum is similar to Diplocaulobium ajoebii, but may be distinguished by the very small midlobe of the lip.
Cultivation: Warm growing epiphyte.