Species Information - Dendrobium centrale

Dendrobium centrale J.J.Sm., Bull. Dép. Agric. Indes Néerl. 45 (1911) 3; Nova Guinea 8, 3 (1911) 550, t. 88A.

Type: Nouhuys, van 9 (holo BO).

Synonyms:

• Diplocaulobium centrale (J.J.Sm.) P.F.Hunt & Summerh., Taxon 10 (1961) 108.
• Dendrobium centrale J.J.Sm. var. contractum J.J.Sm., Bot. Jahrb. Syst. 66 (1934) 189.
  - Type: Stein 422, 424, 433, 458, 498.

Pseudobulbs crowded, 1-leaved, (20-)68-76 cm long, slender in upper part, widened at the apex, in the middle 0.28 cm wide, at the apex 0.5 cm wide. Leaves linear to linear-lanceolate (or lanceolate), (8-)16-21.5 by 1.5-2.2 cm, coriaceous, keeled below, apex obtusely bilobed. Inflorescences arising in succession from the apex of the pseudobulb, fasciculate, 1-flowered, spathe laterally compressed, (1.7-)2.7 cm long; peduncle 1.6 cm long. Pedicel and ovary 2.8 cm long. Flower resupinated, c. 7 cm across. Dorsal sepal linear, 3.8-4 cm by 8-10 mm, 7-nerved at the base, apex obtuse, apiculate. Lateral sepals linear, falcate, widened and obliquely rounded at the base, 3.85-4 cm by 6-8.5 mm in the middle, 9-10.1 mm wide at the base, 7-nerved at the base, apex acute. Petals oblanceolate-subspathulate, 3.9-4.1 cm by 13-16 mm, 5-nerved at the base, apex acute, apiculate. Lip 3-lobed below the middle, 1.5-1.9 by 1.1-1.4 cm, 9-nerved above the base, with two high keels between the lateral lobes; lateral lobes obliquely ovate-oblong, obtuse, apical margin erose; midlobe triangular-linear, 0.85-1 by 0.25-0.4 cm, acute. Column 0.3-0.46 cm long, clinandrium with broad, obtuse lateral lobules, stigma oblong-obovate; column-foot 0.5-0.8 cm long, inside papillose.
(after Smith, 1911, 1929 & 1934; measurements between brackets refer to 'var. subcontractum').

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