Species Information - Dendrobium pulleanum

Dendrobium pulleanum J.J.Sm., Bull. Dép. Agric. Indes Néerl. 45 (1911) 4; Nova Guinea 8, 3 (1911) 557, t. 90C.

Type: Bogor cult. (Branderhorst) 225 b (holo BO 2x; iso L).

Synonyms:

• Grastidium pulleanum (J.J.Sm.) Rauschert, Feddes Repert. 94 (1983) 452.

Rhizome short. Stems crowded, elongated, rigid, terete below, elliptic in cross-section in upper part, 75 cm by 3.3-5.5 mm, internodes 2.5-5 cm long. Leaf sheaths tubular, as long as the internodes. Leaves lanceolate, 12 by 3.9 cm, coriaceous, c. 8-nerved, midvein slightly prominent below, apex acuminate, narrowly obtusely bilobulate. Inflorescences arising laterally from the stem, enclosed in the spathe, 2-flowered, spathe laterally compressed, 0.4-0.45 by 0.4-0.6 cm. Pedicel and ovary 0.65 cm long, 6-grooved, subclavate, triangular in cross section. Flowers c. 1.8 cm wide, ephemeral, fragrant. Dorsal sepal erect, sigmoid, lanceolate-linear, 1.85 cm by 4.8 mm, inside convex, outside strongly concave, thickened, subverrucose, apex narrowly obtuse. Lateral sepals falcate-incurved, lanceolate-triangular, 1.7 cm by 7.5 mm, thickened in upper part, keeled outside, apex acute; mentum incurved, broad, 0.57 cm long, dorsally convex, 3-ribbed, apex bilobed. Petals reflexed, linear-spathulate, 1.65 cm long, 1.8 mm wide at the base, 2.7 mm wide in apical part, thickened in upper part, concave, apex acute. Lip mobile, erect, strongly recurved, entire, 5-angled, 0.8 by 0.66 cm, outside with a longitudinal groove, inside with prominent transverse veins, inside with a basal, weakly 3-ribbed, finely laciniate-verrucose keel which is terminated above the middle by a semiglobose fascicle of prickly hairs, the flat apical part of the lip transversely rugose and longitudinally (5-)grooved, margins in upper part undulate, apex acute. Column at an obtuse angle to the ovary, conical, 0.4 cm long, clinandrium with obtuse, finely erose lateral lobules; stigma angular-suborbicular; column-foot at a widely obtuse angle to the ovary, oblong-quadrangular, 0.48 cm long, 3.4 mm wide at the base, porrect, truncate. Anther cucullate, in front bilobed, 1.4 mm wide. Pollinia oblong.
(after Smith, 1911).

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