生活型

herb

形態特徵

• Stems often pendulous or horizontal, ca. 5 mm in diam., to 50 cm long.
• Leaves terete, 5-10 cm long, 2.5-4 mm thick, rigid, articulated with sheath; sheath 1-4 cm long.
• Raceme axillary; peduncle 5-10 mm long; bract oval-triangular, 3 mm long, 5 mm wide, acute; pedicel and ovary 12-18 mm long, green, with purple spots. Flowers 1-3, with yellowish green sepals and petals; dorsal sepals elliptic, 13-17 mm long, 6-7 mm wide, obtuse, often with purple spots or short line outside; lateral sepals elliptic to obovate, 12-15 mm long, 6.5-7 mm wide, purple spotted, outside distinctly keeled; petals longer, obovate to spatulate, 17-20 mm long, 7-9 mm wide, obtuse; lip 3-lobed, 13-18 mm long, lateral lobes erect, ovatetriangular or rectangular, 3 mm long, 2 mm wide, green, with purple spots, midlobe dark purple nearly throughout, rectangular, 11-15 mm long, 7-9 mm wide, apex with 2 triangular lobules, sinus mucronate, lobules 4 mm long, obtuse; disc with 3-7 raised longitudinal ridges, often wrinkled laterally and appearing reticulate sulcate on entire surface; column stout, 5-6 mm high; anther cap whitish, oval, 3 mm long; pollinia ellipsoid, 1.5 mm long, stipe nearly as long, terminated with a viscidium, viscidium oval or triangular, 2.5 mm wide.
• Capsules fusiform-cylindrical, 3-4 cm long.

分布

• 台灣 : central and southern mountains, 800-2,000 m.

引證標本

TAICHUNG: Pahsienshan, Su 8199, 8944. KAOHSIUNG: Luikuei, Su s. n. Feb 1970; Dona, Su et al. 7530. PINGTUNG: Nantawushan, Lin 305.

參考文獻

• SU, Horng-Jye, Flora of Taiwan, second edition 5: 729. 2000.  (Fl. Taiwan 2nd edit.)