Diplocaulobium carinulatidiscum

Diplocaulobium carinulatidiscum (J.J.Sm.) A.D.Hawkes, Lloydia 20 (1957) 128.

Basionym: Dendrobium carinulatidiscum.

Pseudobulbs crowded, 1-leaved, at the base fusiform, 2.5-5.25 by 0.8 cm, upper part long and slender, 5.8-15 cm by 2 mm. Leaves erect, lanceolate, 6-8.5 by 1.4-'1.1' (2.1?) cm, coriaceous, apex equally obtusely triangular-bidentate. Inflorescences 1-flowered, spathe 1.5-2.2 cm long, acute; peduncle 0.9-1.3 cm long. Pedicel 4.5-5.7 cm long; ovary 0.45 cm long. Flower c. 7 cm across. Dorsal sepal 4 cm by 5.3 mm. Lateral sepals 3.9-4.1 cm by 10 mm, mentum 0.83 cm long, truncate. Petals 3.9 cm by 2.3 mm. Lip weakly 3-lobed, 1.85 by 0.6 cm, with two thick papillose keels; midlobe 1.1 by 0.54 cm, hairy at the base, outside near the apex with a short keel terminating in an acute point. Column 0.25 cm long; column-foot 0.8 cm long.
(after Smith, 1929).

Colours: Sepals and petals white with yellowish green tips, lip with a yellow centre an purple-veined margins, column yellow, ovary yellowish white.

Habitat: Epiphyte in rainforest. Altitude 70 m.

Flowering time in the wild: June.

Distribution: New Guinea (endemic).

Distribution in New Guinea: Papua (Jayapura Regency: Mamberamo River).

Notes: Diplocaulobium carinulatidiscum is a distinctive ally of Diplocaulobium janowskyi.

Cultivation: Warm growing epiphyte.

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