(86) 香港玉鳳花
Habenaria coultousii Barretto
蘭科 (Orchidaceae)
英文名
(English name): Hong Kong Habenaria
Status in China: Critically Endangered (CR)
(Photograph and specimen presented by Mrs. G. Barretto to the Hong Kong Herbarium.)
Description: Terrestrial orchids, 15-45 cm tall, with oblong fleshy rhizomes. Leaves lanceolate or ovate-lanceolate, 2.5-5.2 cm long and 8-12 mm wide, margin membranous, sheathing and stem-clasping at base. Racemes 2-8-flowered. Flowers green-white; dorsal sepal narrowly ovate, 8-9 mm long, very concave; lateral sepals reflexed. Petals white, oblique-ovate, 9-11 mm long, bilobed; lobes unequal, lip greenish, 9-12 mm long, 3-lobed at base, margins of petals and lip glabrous; spur spindle-cylindric, 22-24 mm long; column green-white, concave, with 2 staminodes on both sides. Capsule angulate.
Distribution: Endemic to Hong Kong, only known from Tai Tam Country Park.
Habitat and Ecology: In forests on slopes or in valleys, alt. ca. 300 m. Flowering: Oct.
A rare species, first discovered in 1978 from Mount Violet. The localities of its occurrence are in Country Parks under protection. This species is also protected by the Forestry Regulations (Cap. 96 sub. leg.) and the Protection of Endangered Species of Animals and Plants Ordinance (Cap. 586).
References:
Barretto, G.D. 1981: Orchidian 7(1): 10. Fig. 1.
郎楷永,
1999：中國植物誌
17：450。科學出版社，北京。