生活型

herb

形態特徵

• Pseudobulbs closely approximate, conic-ovoid, sometimes oblique, 1-3 cm tall, ca. 1-1.5 cm thick, with 2-3 nodes, covered by scarious sheaths, 1- or 2-leaved at apex.
• Leaves linear, 20-40 cm long, 0.8- 1.5 cm wide, apex acuminate, attenuate, sulcate toward base, plicate, mainly 3-nerved, false stem below articulation 5-6 cm long.
• Peduncle arising from upper node of pseudobulb, erect, 10-30 cm long, slender, greenish, with 2-3 long sheaths belowe; rachis ca. 10 cm long, with more than 10 flowers; bracts ovate-lanceolate, 3-6 mm long, 1 mm wide, acute; pedicel and ovary ascending, 8-12 mm long, slender, glabrous. Flowers brownish yellow; sepals subspreading, subequal, sometimes with minute dark purple spots especially near margins, dorsal one oblanceolate, 8-10 mm long, 1.5-2 mm wide, acute, lateral ones slightly shorter and wider than dorsal one, descendent-arcuate; petals oblique-falcate, 7-8 mm long, 1.5-2 mm wide, apex acute, contracted at base; lip pale yellow or nearly white, cuneate-obovate, short clawed at base, 5-6 mm long, 3 mm wide, 3-lobed from claw, lateral lobes falcate, 2.5-3 mm long, 0.6 mm wide, obliquely truncate at apex, curved downwards, midlobe cuneate-obovate, 4-5 mm long, 3- 4 mm wide, truncate and emarginate at apex, base cuneate, slightly crisped along front margin, disc with grooved callus near base; column 5 mm long, pale yellow, with purple dots on ventral side, base slightly protruding, with triangular cavity opposite to claw of lip; anther nearly orbicular, 1 mm across.

分布

• 台灣 : mixed broadleaved and coniferous forests, 2000-2800 m.
• 世界 : China, Korea, Ussuri and Japan.

引證標本

NANTOU: Luantashan, Mori s. n. Apr 1910. CHIAYI: Alishan, Su 955*; 7855. TAITUNG: Doushan, Su & Chen 8910.

參考文獻

• SU, Horng-Jye, Flora of Taiwan, second edition 5: 991. 2000.  (Fl. Taiwan 2nd edit.)