Coelogyne susanae

Coelogyne susanae P.J.Cribb & B.A.Lewis, Kew Bull. 46 (1991) 317

Type: Wickison 40 (holo K)

Roots 0.2-0.3 cm diam. Rhizome 0.95-1.5 cm thick. Scale-covered part of the inflorescence-bearing young shoot 10-11.5 cm long. Pseudobulbs up to 2 cm apart, oblongoid, obtusely 4-angled when fresh, 6.8-17 cm long. Leaves two per pseudobulb, stiff herbaceous. Petiole 3-7 cm long. Blade linear-lanceolate, 32-45 by 6.5-8.7 cm; apex acuminate to cuspidate; main nerves 5-7. Inflorescence synanthous with the partially to entirely developed leaves, 2-18-flowered. Peduncle during flowering at the base enclosed by the petiole and scales of the young shoot, 7-41.5 cm long. Rachis (sub)erect, zigzag, 2.5-32 cm long; internodes 1.4-3.2 cm long, distinctly curved, incrassate, each with a swollen base bearing a flower. Floral bracts ovate-lanceolate, 4.1-6.7 by 1.4-1.5 cm, deciduous; apex acute; nerves 11-13. Flowers opening in succession, fragrant. Pedicel 0.5-0.9 by 0.25-0.32 cm; ovary 1.4-2.8 by 0.5-0.75 cm. Median sepal ovate-oblong, 5.0-6.7 by 1.7-2.3 cm; apex obtuse; nerves 13-15, the midrib a rounded keel 0.05-0.08 cm high. Lateral sepals ovate-lanceolate, 5.6-6.2 by 1.6-1.95 cm; apex acute; nerves 13-17, the midrib a rounded keel 0.05-0.08 cm high. Petals slightly recurved, 5.0-6.7 by 0.35-0.5 cm; apex acuminate; nerves 3, midrib centric. Lip 4.0-5.5 by 3.1-3.6 cm, nerves 15-19. Hypochile when flattened 1.8-2.3 by 3.1-3.6 cm; base attached over 1.6-2.7 cm, not saccate; lateral lobes in front obtuse, extending 0.1-0.4 cm in front, front margin at the base slightly irregularly erose, with obtuse sinus: apex not saccate; keels 11-13, each consisting of a row of irregularly shaped, elongate warts 0.1-0.2 cm high with papillae but without hairs on the basal quarter of the hypochile and a slightly elevated row with irregularly shaped horizontal ridges 0.12-0.2 cm high with papillae but without hairs on the apical parts of the hypochile, not widened along the crest, the 5 median keels parallel at the base of the hypochile and there 0.05-0.1 cm high, diverging on the apical half of the epichile, converging again on the basal half of the epichile, the 3 median keels developed on the hypochile and the basal half of the epichile, the 6-8 lateral keels only developed on the apical half of the hypochile, lower than the median keels. Epichile convex, when flattened elliptic to ovate to orbicular, 2.1-3.7 by 1.9-2.1 cm, with a broad, relatively long claw 0.02-0.07 cm in cross section; base broadly attached over 1.2-1.55 cm; apex retuse, slightly raised, with an acute apex with warts 0.03-0.05 cm high; margin slightly cruse, recurved; sides not to slightly pronounced as lateral lobes, with a few warts 0.008-0.1 cm high, centre 0.04-0.09 cm in cross section, margin 0.02-0.025 cm in cross section: keels 7-9, the 2 longest ones ending 1.2-1.5 cm from the apex of the epichile, on the claw identical with the keels on the hypochile, on the blade changing into a row of irregularly shaped, elongate warts with papillae but without hairs. Column 2.25-2.35 by 0.8-1.05 cm; hood with truncate apical margin, laterally notched where the wings are attached and above, the middle part rounded, recurved. Anther oblong bell-shaped in outline, 0.55-0.6 by 0.59-0.6 cm, near the place of attachment with a little elongate projecting apex; apex without notch. Pollinia obliquely ellipsoid, 0.25-0.32 by 0.15-0.17 cm; caudicle flattened, broadly triangular in outline, 0.15-0.18 by 0.15-0.35 cm. Stigma 0.4-0.6 by 0.6-0.7 cm; margin apex notched; rostellum 0.38-0.6 by 0.6-0.7 cm, with an obtuse apex with or without notch. Fruit not seen. (After Gravendeel and De Vogel, 1999).

Colours: Sepals and petals pale yellow green to creamy green with an orange or red brown lip and a white or pale yellow apex. Column whitish, brown on ventral surface.

Habitat: Epiphyte in montane forest.

Flowering time in the wild: Not known

Distribution: Malesia (New Guinea), Solomon Isl.

Distribution in New Guinea: Papua New Guinea (New Britain)

Cultivation: Intermediate growing epiphyte.