生活型

herb

形態特徵

• Rhizome tuberous, cylindrical, sparsely pubescent, 5-9 cm ling, 5-8 mm thick, with deltoid sheaths and nodes.
• Inflorescence erect, 2-5 cm long, rachis 1-1.5 cm, with short tubular sheaths, raceme condensed, bearing 1-4 nearly tufted flowers; floral bract broadly ovate, persistent, 5-7 mm long. Flowers campanulate, yellowish brown, 1.5-1.8 cm across; pedicel and ovary 8-10 mm long, with small papilla; sepals light yellowish brown, connate into a tube forming an obscure mentum, abaxial surface more or less verrucose, adaxial surface smooth, margins entire or crisped, semi-limpid, trilobed at apex, free lobes spreading, lobes 7-8 mm, tubular part 4-6 mm long, 4-6 mm wide. Dorsal sepal 9-10 mm ling, 3-nerved, emarginated; free part widely ovate, spreading, 5-6.5 mm long, 5.5-6.3 mm wide. Lateral sepals, light yellowish brown, 1.2-1.3 mm long, 4-nerved, obtuse; free part widely ovate, spreading, 4.5-5.0 mm long, 5-6 mm wide. Petals light yellowish brown, adnate to the calyx tube, 1-nerved, margins entire or crisped, surfaces smooth, sometimes verrucose on abaxial side; free part orbicular or widely ovate, obtuse, 3.0-3.5 mm long, 3.0-3.5 mm wide. Lip clawed, margins entire, 3-loved, 8-nerved, 5.0-6.0 mm long exclusive of claw; claw quadrate or widely obovate, 2.5-2.8 mm wide adnate to base of sepal tube, lateral lobes semiorbicular to deltoid 3.2-3.5 mm long, 4.8-5.0 mm wide when expanded, basal 3/4 orange, cream toward apex, adaxial surface pubescent, with longer hairs apically, abaxial surface smooth or papillate, midrib furrowed; midlobe quadrate, glabrous, cream, 2.0-2.1 mm long, 0.9-1.0 mm wide when expanded; with keel 1 in middle, a pair of small elevated keels near the tip, deltoid in side view, provided with 2 globose calli, collateral on adaxial side of claw of lip, sparsely papillate. Column straight, shorter than lip, 4.0-5.0 mm long inclusive of column foot, yellowish brown; lateral wings truncate, incurved above middle, forming an acute tooth on either side of apex, dilated toward base; stigma borne near middle; column foot distinct, provided with a pair rounded calli; anther cap ovoid, 1.3-1.5 mm long, 1.1-1.4 mm wide.
• Capsule cylindrical, peduncle and ovary very elongate in fruiting.

物候

Flowering season: March.

分布

• 台灣 : Northern Taipei City.
• 世界 : Iriomote Island, Ryukyu, Japan.

引證標本

Taipei City: Sanzhi Hsiang, Beixinzhuang, Yangmingshan National Park, March 23, 2005, Chung & Hsu 8006 (TAIF).

參考文獻

• Shih-Wen Chung and Tien-Chuan Hsu, Taiwania 51(1): 50. 2006.