生活型

herb

形態特徵

• Roots few, slender or occasionally thickened, mostly extending from apex of rhizome. Rhizome tuberous, fusiform or cylindrical, 2-7 cm long, 3-10 mm in diameter, annulate, covered with numerous scales and unicellular hairs.
• Inflorescence erect, pale brown, 3-8 cm long, 2-3.5 mm in diameter, 3-4 noded, with tubular, membranous sheaths. Bracts up to 3.5 mm long, 3 mm wide. Pedicel and ovary to 15 mm long. Flowers 1-3(-4), tubular, slightly nodding, resupinate, 18-24 mm long, 11-13 mm in diameter. Sepals and petals united and forming a 5-lobed perianth tube. Sepals subsimilar, fleshy, 18-24 mm long, connate ca. 3/4 their length with surface dark brown, verruculose, margins entire; free portion of dorsal sepal straight, ovate-triangular, retuse, ca. 7 mm long, 6 mm wide; free portions of lateral sepals spreading, obtuse at apex. Free portions of petals ovate or ellipse, to 4 mm long, 3.5 mm wide. Lip adnate to column foot, 7-8 mm long, hypochile with2 greenish, globose calli; epichile pale-yellowish white, ovate-orbicular, base contracted, disc 4-6 ridged, the central two ridges higher near apex and extending toward apex, margin slightly undulate; the apex portion ligulate, reddish, ca. 1.2 mm wide. Column straight, semicylindrical, ca. 8 mm long, ca. 2.5 mm wide, white tinged with reddish brown at base; column foot well developed; lateral wings (stelidia) distinct, narrow, the edges parallel to column, base slightly angled, apex acute; rostellum small; stigma located at base. Anther hemispheric, 1.1-1.3 mm in diameter, pollinia 2.
• Capsule cylindrical, 2.5-3.5 cm long, pedicel elongating to 37 cm long in fruit. Seeds fusiform, 1.8-2.5 mm long.

物候

Flowering is observed from middle May to early April; fruiting from April to May.

分布

• 台灣 : populations are found in broadleaved forests at 500-1200m in northern mountainous regions.
• 世界 : Japan.

引證標本

Taipei County: Wulai Township, Dadaoshan, 500-600 m alt., T.C. Hsu 732, 1319 (TAIF); Wulai Township, Pataoerhshan, 600-900 m alt., T.C. Hsu 783, 784, 794, 1315, 1331 (TAIF). Taoyuan County: Fushing Township, along the trail from Shaowulai to Peichiatienshan, 1100-1200 m alt., T.C. Hsu 502, 735, 1333 (TAIF).

參考文獻

• Tian-Chuan Hsu and Chen-Meng Kuo, Taiwania 55(3): 246. 2010.