Vexillabium yakushimense

紫葉旗唇蘭

Vexillabium yakushimense (Yamam.) Maek.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

Maek., Journal of Japanese Botany 11: 459. 1935. (J. Jpn. Bot.)

台灣首次記錄發表文獻

Su, Flora of Taiwan, second edition 5: 1067. pl. 459. 2000. (Fl. Taiwan 2nd edit.)

異名

Anoectochilus yakushimensis Yamam.

Yamam., The Botanical magazine, Tokyo 38: 131. 1924. (Bot. Mag. Tokyo)
Cystopus humilis Fukuy.

Fukuy., The Botanical magazine, Tokyo 48: 307. 1934. (Bot. Mag. Tokyo)
Pristiglottis humilis (Fukuy.) Fukuy.

Fukuy., The Botanical magazine, Tokyo 49: 666. 1935. (Bot. Mag. Tokyo)
Pristiglottis yakushimensis (Yamam.) Masam.

Masam., Col. Ill. Fl. Nippon 8: 218. 1970.
Vexillabium humilum (Fukuy.) S. S. Ying

Ying, Coloured illustrations of indigeous orchids of Taiwan 1: 509. 1977. (Col. Ill. Indig. Orch. Taiwan)
Vexillabium nakaianum auct. non Maekawa

Lin & Lin, Taiwania 54(4): 331. fig. 2J. 2009.

各語言俗名

中

精巧旗唇蘭. 粉紅頦萼蘭. 旗唇蘭. 蘭嶼頦顎蘭. 小旗唇蘭.
英

うすべにたしろらん.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Rhizome much branching, rootless, bearing hairs only. Stems ascending, 3-6 cm tall, terete, 1.5-2.5 mm in diam., dark purple, bearing leaves at upper half.
Leaves dark greenish purple, broadly ovate to ovate-elliptic, 1-1.8 cm long, 0.5-1.5 cm wide, apex acute, rounded at base, smooth and thinner and somewhat hyaline at margins; petiole 0.5-1 cm long.
Peduncle hairy, 4-8 cm long, reddish-purple, with 1-2 sheaths below, sheaths glabrous or upper ones sparsely hairy abaxially, ciliate at margin; rachis 1.5- 2.5 cm long, 3-8-flowered; floral bracts hairy abaxially, ciliate at margins, 4-5 mm long. Flowers resupinate; ovary green, glabrous or rarely sparsely hairy; sepals connate at base, not spreading, green at base, whitish toward apex, glandular hairy abaxially, dorsal one ovate-lanceolate, 4-5 mm long, connate for 1/5 of its length to laterale ones, lateral ones oblong, 6-7 mm long, connate for 1/2-1/3 length at base forming pouch and enclosing saccate base of lip, pouch white or light pink; petals white or with green or brown dots or patches at apex, falcate, 4-5 mm long; lip 7-8.5 mm long; hypochile saccate, bearing 2 papillae within, papilla low or high, tabular or conical, 0.4-1.0 mm tall; mesochile clawed, ca. 3 mm long, with 1-5 teeth on both sides or not; epichile divergently bilobed, 4.3-4.8mm wide, 2-4 mm long; column 2-2.5 mm long; anther 1.2-1.5 mm long, slightly twisted at apex; pollinia 1.0-1.1 mm long; stigma semiorbicular; rostellum twisted at apex, arms unequal.

分布

台灣 : common in forests at low and middle elevations throughout.
世界 : China and Japan.

引證標本

TAIPEI: Pinlin, Leou 3762; Su 9030. ILAN: Nanshan, Su 7924. HSINCHU: Litungshan, Leou 3430; Naluo, Su 8305. TAICHUNG: Chiapaotai, Leou 3547. NANTOU: Kuantauchi, Leou 3306; Hoshe, Leou 4021. KAOHSIUNG: Wanshan, Su 9031. HUALIEN: Taroko, Su 9519.