Oreorchis patens

細花山蘭

Oreorchis patens (Lindl.) Lindl.

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

Lindl. 1859. The journal of the Linnean Society of London. Botany 3: 27. (J. Linn. Soc., Bot.)

台灣首次記錄發表文獻

Su. 2000. Flora of Taiwan, second edition 5: 991. (Fl. Taiwan 2nd edit.)

異名

Oreorchis gracilis Fr. & Sav. var. gracillima Hayata

Hayata. 1912. Icones Plantarum Formosanarum 2: 141. (Icon. Pl. Formos.)
Oreorchis gracillima (Hayata) Schltr.

Schltr. 1919. Repertorium specierum novarum regni vegetabilis 4: 223. (Rep. Sp. Nov. Regni Veg.)
Oreorchis patens Lindl. var. gracillima (Hayata) S. S. Ying

Ying. 1988. Quarterly journal of Chinese forestry 21(2): 116. (Quart. J. Chin. For.)

各語言俗名

中

細花山蘭、小蕙蘭
日

ひめこけいらん

參考文獻

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

特徵描述

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.