Dendrobium infractum

Dendrobium infractum J.J.Sm., Repert. Spec. Nov. Regni Veg. 12 (1913) 118; Nova Guinea 12, 3 (1916) 340, t. 123, fig. 225.

Type: Gjellerup 1155 (holo BO, iso L).

Stems elongated, unbranched, terete, 67.5 cm long, internodes 2.8-3.5 cm long, shorter in upper part. Leaf sheaths verruculose, with prominent veins. Leaves narrowly lanceolate to linear-lanceolate, 1.5-7 by 0.5-1.3 cm, coriaceous, margins in apical part minutely crenulate, apex subacute to acute, apiculate. Inflorescences lateral, racemose, very short, 2-3-flowered. Floral bracts broadly ovate, 0.8 cm long, apex acuminate, outside verruculose. Pedicel and ovary 2.8 cm long, clavate. Flowers 3.3 cm long. Dorsal sepal 1.3 cm by 7 mm; mentum elongate-conical, 1.85 cm long, obtuse. Petals 1.24 cm by 5.5 mm. Lip clawed, spathulate, when flattened 2.2 by 0.53 cm, claw for 1.2 cm adnate to the column-foot; apex cucullate, plicate, subbilobulate, apical margin densely serrate. Column 0.35 cm long; column-foot 1.75 cm long.
(after Smith, 1916).

Colours: Flower violet-red.

Habitat: Epiphyte on lakeside tree. Altitude 1900 m.

Flowering time in the wild: April.

Distribution: New Guinea (endemic).

Distribution in New Guinea: Papua (Manokwari Regency: Arfak Mountains).

Notes: Dendrobium infractum is closely related to Dendrobium lawesii.

Cultivation: Cool growing epiphyte.