生活型

herb

形態特徵

• Terrestrial herbs. Stems erect, 10-20 cm tall, 2 mm in diameter. Roots rigid, 2-3 mm in diameter. Tubers lateral, short cylindric. Branchlet (i.e. annual growth) mostly bearing one leaf and three sheaths. Sheaths thin and often caducous.
• Leaf solitary, apical, thin, linear-lanceolate, 8-10.5 cm long, 1.7-2.1 cm wide, apex acuminate, base acute, with 5 longitudinal main veins, veinlets 4-6, wavy at margins.
• Inflorescence terminal; peduncle 4.5-5 cm long; spike densely 9-12-flowered, less than 1.5 cm long; bracts lanceolate, glabrous; ovary cylindric, 5-7 mm long, 6-ridged. Flower not resupinate, whitish except the apex of lip; sepals 6.5-8 mm long, dorsal sepal free, obliquely oblong, concave, lateral sepals connate, nearly completely uniting of their adjacent margins together, oblong, slightly concave at both ends, reflexed; petals free, obliquely oblong, 6.5-7 mm long, slightly concave, keeled at back; lip ca. 5 mm long, 3 mm wide, sub-saccate base bigger and white below, very slightly bisaccate at the very base, ligulate apex smaller, smooth, recurved and orange or orange-red, bearing 2 longitudinal ridges near the margins, the ridges lamellate below and diminishing their height toward apex; column half globose, 3-lobed, 3 mm long; anther ovate, 1.8 mm long; pollinarium 2.2 mm long, viscidium obovate, 0.4 by 0.3 mm , hamulus stipe slender, 1 mm long; pollinia 2, clavate, white, 1.7 mm long; stigma transversly elliptic; rostellum broadly triangular, bifid at apex.

物候

Flowering season: from July to August.

分布

• 台灣 : It is only found on Mt Lilung (Lilungshan), Pingtung County, south-western Taiwan. (Fig. 3). We predict this species would be also distributed in southern Asia.

參考文獻

• Ching-Long Yeh, Chong-Sheng Leou and Chuan-Rong Yeh, Taiwania 54(2): 140. 2009.