生活型

herb

形態特徵

• Rhizomes long creeping, terete, stiff, 1.5~1.8 mm in diameter. Pseudobulbs arranged ca. 0.3~1.2 cm apart, ovoid-conic, pale-green, often oblique, rugose, 6~11 mm long, 6~10 mm in diameter.
• Leaves solitary, short-petioled, oblong, thick-coriacious, 1.5~3.0 cm long, 8~11 mm wide, cuneate at base.
• Scapes from base of pseudobulb, 1~2 cm long, thick; bracts elongate-triangular, 4 mm long; pedicel and ovary 6 mm long, ovary forming an angle of at least 100° with the pedicel. Flowers 4~7 in a very short raceme, umbellate, 9~10 mm long, 4 mm across, brown in the beginning of anthesis, transforming to reddish-brown and finally bright-red; upper sepal ovate, acute, reddish but veins even deeper, concave, 5 mm long, 3.5 mm wide, with long white cilia on margins, much longer towards apex (ca. 3 mm long); lateral sepals scarlet, touching the entire length and only free at end, rugose on surface, obliquely linear-lanceolate, 10 mm long, obtuse or rounded, incurved, hairless on upper and lower margins; petals obliquely elliptical, scarlet, 3.5 mm long, 1.5 mm wide, with long white cilia; lip attached to tip of column foot, scarlet, horn-like, 2.5 mm long, rounded at apex, recurved, disc shallowly grooved, also grooved on lower side; column semiterete, 2 mm tall, column-foot without appendage, upcurved. Stylids (stelidia) with a slender tooth; anther operculate; pollinia 4, in 2 pairs.
• The thick leaves of var. <i>luchuensis</i> can reach 4 x 2 cm in Kuanwu, Hsinchu Co.

物候

Flowering observed sporadically but mainly in August.

分布

• 台灣 : This species grows in aggregations on trunks of conifers on the windy and chilly ridge of Luchushan (鹿屈山), Nantou Co. at an elevation of 2150 m.

引證標本

Wei-Min Lin s.n. (holo TAI256487, Luchushan, Nantou Co.)

引用文獻

• Tsan-Piao Lin and Wei-Min Lin, Taiwania 54(4): 325. 2009.