Cadetia doormanii

Cadetia doormanii (J.J.Sm.) Schuit., Blumea 39 (1994) 235.

Basionym: Dendrobium doormanii.

Rhizome short. Stems crowded, erect, slender, narrowly clavate, sharply 4-winged, 7.5-9 cm long, at apex to 6 mm diameter, 1-leaved. Leaves subovate-lanceolate, 8 by 1.9 cm, rigidly carnose, base rounded, apex bidentate. Inflorescences terminal from the leaf axil, several in succession, 1-flowered. Pedicel and ovary 1.45 cm long, triangular in cross section, with 3 prominent ribs. Flower resupinated, c. 1.2 cm across. Dorsal sepal oblong, 0.66 cm by 3 mm, apex obtuse. Lateral sepals obliquely triangular, slightly falcate, 0.6 cm by 3 mm, apex obtuse; mentum spur-like, 0.7 cm long, in apical 2/5 distinctly narrowed, apex narrowly obtuse. Petals obliquely linear, 0.6 cm long, in the middle 1, at base 2.5 mm wide, apex obtuse, slightly retuse. Lip 3-lobed in basal third of the blade, clawed, 0.55 by 0.56 cm (excluding the claw); lateral lobes porrect, obliquely broadly ovate, 0.2 by 0.2 cm, concave, obtuse; midlobe transversely elliptic, 0.34 by 0.53 cm, glabrous, at the base with two close, conical, patent teeth, with 5 longitudinal keels separated by grooves, apex slightly retuse. Column 0.25 cm long, stelidia triangular, narrowly obtuse; column-foot 0.7 cm long, the base broader than the column.
(after Smith, 1929).

Colours: Flower white or light yellow, on the lip with one or two violet spots.

Habitat: Epiphyte in hill forest. Altitude 250 to 800 m.

Flowering time in the wild: September.

Distribution: New Guinea (endemic).

Distribution in New Guinea: Papua (Puncak Jaya Regency).

Map: DOORMMAP.JPG [Cadetia doormanii (J.J.Sm.) Schuit., distribution map.]

Notes: Cadetia doormanii is related to Cadetia collina, but distinguished by the much broader midlobe and the longer, almost pointed spur.

Cultivation: Warm to intermediate growing epiphyte.