Species Information - Dendrobium giriwoense

Dendrobium giriwoense J.J.Sm., Repert. Spec. Nov. Regni Veg. 12 (1913) 112; Nova Guinea 12, 4 (1916) 311, t. 113, fig. 204.

Type: Janowsky 141 (holo BO; iso L).

Synonyms:

• Grastidium giriwoense (J.J.Sm.) Rauschert, Feddes Repert. 94 (1983) 449.

Rhizome short, roots thick. Stems crowded, in basal part thin, covered in scale-leaves, in cross-section elliptic, in upper part strongly laterally compressed, leafy, 55 cm by 3.3 mm, internodes in basal part to 1.8-2.3 cm long, in upper part 0.5-0.65 cm long. Leaf sheaths longer than the internodes, ancipitous, at apex excised and provided with a small tooth. Leaves widely patent, twisted at the base so as to lie in one plane, oblong-ovate, 2.3-4.3 by 0.9-1.2 cm, thin papyraceous, apex strongly unequally obtusely bilobulate. Inflorescences laterally from the stems; peduncle 0.2 cm long, 2-flowered, spathe 0.35 cm long. Pedicel and ovary 0.85 cm long. Flowers c. 1.5 cm across. Dorsal sepal 0.8 cm by 4 mm; mentum 0.4 cm long, truncate-rounded. Petals 0.75 cm by 3.6 mm. Lip 3-lobed, when flattened 0.7 by 0.73 cm; midlobe 0.26 by 0.4 cm. Column 0.3 cm long; column-foot 0.38 cm long, near the apex with a large subquadrangular callosity.
(after Smith, 1916).

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