形態特徵

• Rhizomes creeping, gracile, loosely arranged. Each shoot about 5 cm tall, with 3-4 internodes, bearing a single leaf; the internode just below leaf sometimes swollen slightly and dark brown.
• Leaf blade elliptic, green on upper side, reddish-brown on lower side because of many reddish-brown veins, 5-7 cm long, 2-3 cm wide, acute, papery, base contracted forming a petiole-sheath about 1.2 cm long.
• Inflorescence ca. 7 cm long, enclosed in membranous tubular sheaths, originating from middle node of shoot and producing a single flower; floral bracts cymbiform, 2.2 cm long, 0.9 cm wide, tinged with reddish-brown spots. Flower pink or tinged with reddish-brown spots, 3 cm across; pedicel and ovary 2.5 cm long; sepals similar, free, linear, 2.5 cm long, 3 mm wide, apex acuminate. Petals similar to sepals, 2.3 cm long, 2 mm wide, apex acuminate. Lip elongate rhombate, tinged with reddish-brown spots, with no outgrowth on disc, 2.1 cm long, 1.1 cm wide, about 3 parallel veins running entire length, 3-lobed; lateral lobes triangular, smaller; mid-lobe more or less triangular, 9 mm long, 8 mm wide, obtuse; spur 2.5 cm, slightly compressed, crooked in middle, apex 2-forked. Column 1.5 cm long, free from lip.
• Rostellum conspicuous; pollinia 8, yellow.

物候

Flowering time: July.

分布

• 台灣 : in a heavily shaded forest, Fu-Hsing Township, Taoyuan County, at 900-1000 m.
• 世界 : Yunnan Prov., China; Ryukyu Islands, Japan; northern Vietnam.

參考文獻

• Tsan-Piao Lin and Wei-Min Lin, Taiwania 56(4): 315-322. 2011.