生活型

herb

形態特徵

• Terrestrial. Rhizome repent. Pseudobulbs elongate-ovoid or nearly cylindrical, 3~3.5 cm tall, 14 mm thick, glabrous, dark-purple, articulates with petiole.
• Leaves elongate-elliptic, 25 x 4.8 cm, acute, mainly 3-nerved, tapering into a petiole up to 5 cm long. Inflorescence produced from rhizome, 32 cm tall, as long as leaves, enclosed by 2 separate tubular sheaths below; scape green, stout; raceme about 5~6 cm long, many-flowered, dense.
• Bracts linear-lanceolate, 4~5 mm long. Pedicel with ovary greenish-brown, about 1 cm long, arcuate. Flowers ca. 16, spreading, 2.4 cm across; sepals ocher-brown; upper one linear, 15 x 2.8 mm; lateral ones linear-falcate, 13 x 3 mm, jointed to column-foot, forming a short mentum; petals ocher-brown, linear-falcate, 15 x 3.5 mm, meeting at base and arched on column. Lip yellow, 11 mm long and 10 mm wide when folded out, with minute reddish-brown dots on each side, flabellate from a cuneate base, 3-lobed at apical 1/4; side lobes erect, deltoid, curved inside at margin; midlobe transversely elongate-rhombate, 3 x 8 mm, obtuse at apex, curved inward the margins; disc with 3 keels, running from base to tip of lip, side keels dilated in middle and twisted, middle keel indistinct. Column 7 mm long, curved, light-green, base with a short foot; anther cap with 2 reddish-brown horns; pollinia 8, laterally compressed, without a stipe.

物候

Flowering Season: End of May.

分布

• 台灣 : This species was originally collected by Mr Liang-Rur Chang and Ms Jin-Jy Wu, and is known only from Jurluhshan ( 逐鹿山), Taipei Co. at an elevations of 800 m.

引證標本

Liang-Rur Chang s. n. (holo TAI 268957, Jurluhshan, Taipei Co.).