生活型

herb

形態特徵

• Terrestrial herbs. Stem erect, terete, 10 cm long, 0.3-0.4 cm in diameter, glabrous, succulent, light red brown, rooting at lower nodes.
• Leaves 2-4, petiolate, triangular-lanceolate, 3.2-6 cm long, 1.4-2.3 cm wide, apex acuminate, base more or less truncate, margin entire, green along margins and white with dark green reticulation, along midrib, the white blotches becoming faint with age, glabrous, 5-nerved; petioles 1.5 cm long, sheathed at base.
• Peduncle 9 cm long, hairy, with 5 sheathed bracts, the bracts glabrous outside, ciliate at middle and lower margins, bearing 3 red veins; raceme 8 cm long, 13-flowered; floral bracts hairy. Flowers resupinate, half-opened; ovary sparsely hairy, erect on rachis; sepals free, unequal, hairy outside, the dorsal one boat-shaped, 5 mm long, light brown, the lateral ones concave, with inrolled margins at apex, 4 mm long, dark green; petals white, lunar or falcate, appressed to the dorsal sepal and with it formed a hood, 4.5 mm long; lip adnate with column at base, white, tripartite, glabrous, somewhat urceolate in side view, 4 mm long, the hypochile exposed, ventricose-saccate, ovoid, 1.7 mm wide, bearing 2 digitate papillae within, the mesochile short, sulcate, the epichile reflexed, dilated and undivided, transversely oblong or subreniform, 0.8 mm long, 1.7 mm wide, bearing sharp conic cells on upper surface; column 2.2 mm tall, with 2 low ridge-like appendages on ventral side; anther triangular-ovate, 2 mm long; pollinia clavate; stigma 2, on lateral side of column; rostellum straight, arm-like; tegula spathulate, 1.6 mm long; viscidium oblong.

物候

Flowering season: Febuary to early March.

分布

• 台灣 : In mountain forest at western Lanyu isl.

引證標本

Lanyu isl., Taitung, Taiwan, C. L. Yeh & C. R. Yeh 4021(PPI), 15, Feb., 2005.

參考文獻

• Ching-Long Yeh, Chuan-Rong Yeh and Chong-Sheng Leou, Taiwania 50(4): 284. 2005.