Genus Dendrobium section Diplocaulobium subsection Diplocaulobium
Genus Dendrobium Sw. sect. Diplocaulobium Rchb.f. subsect. Diplocaulobium. Type species: Dendrobium nitidissimum Rchb.f.
- Diplocaulobium (Rchb.f.) Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910) 331.
- Diplocaulobium (Rchb.f.) Kränzl. in Engl., Pflanzenr. IV. 50. II. B. 21 (1910) 331..
Sympodial epiphytic plants. Pseudobulbs consisting of one internode, either clustered and often elongated with a more or less abruptly swollen basal part, or spaced along an elongate, creeping or pendulous rhizome, 1-leaved at the apex . Leaves glabrous, dorso-ventrally flattened, articulate, duplicate, leathery; base without leafsheath. Inflorescence 1-flowered, terminal, often in fascicles from the apex of the pseudobulb, from a bilaterally flattened, long-persistent, yellow spathe, Flowers medium-sized to large, resupinate, mobile, lasting less than 1 day or rarely lasting a few days, in most species with white sepals or petals which often turni reddish-purple when they start wilting, but also with various other colours. Sepals free; mentum chin-like. Lip mobile on the apex of the column foot, entire or 3-lobed, without spur; at least the hypochile with swollen keels. Column-foot present. Pollinia 4, solid-waxy, caudicles absent, stipe absent, viscidium absent.