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Thrixspermum eximium

異色瓣

Thrixspermum eximium L. O. Williams
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名彙資訊

學名發表文獻

L. O. Williams, Botanical Museum Leaflets 6(4): 87. 1938.  (Bot. Mus. Leafl.)

台灣首次記錄發表文獻

Lin & Hu, Quarterly journal of Chinese forestry 9(1): 54. pl. 4. 1976.  (Quart. J. Chin. For.)

異名

各語言俗名

  • 異色風蘭. 異色瓣.

特徵描述

生活型

herb

形態特徵

  • Stem 1-2 cm long.
  • Leaves 4-7, close, base clasping, slightly conduplicate, articulated with sheath, ligulate or elongate elliptic, rarely falcate, 4-7 cm long, 8-15 mm wide, apex unequally bifid, with a sharp seta.
  • Inflorescence at base of stem, peduncle straight, slender, 9 cm long, 0.5 mm in diam.; rachis dilated, ca. 1 cm long; bract ca. 1 mm long; pedicel and ovary ca. 4 mm long. Flowers white, tinged with light red, borne in succession, 1 or 2 at a time, lasting for only half a day, 1.2 cm across; dorsal sepal elliptic, 5 mm long, 3 mm wide, obtuse; lateral sepals ovate to suborbicular, 5 mm long, white, lower half turning light red; petals concave, elliptic, 5 mm long, 4 mm wide; lip shallowly saccate at base, 4.8 mm long, irregularly dentate apically, 3-lobed, lateral lobes erect, triangular-rounded, apical margin brown, tinged with red basally, upper margin yellowish inside, with orange line basally, midlobe broad, denticulate, slightly 2-lobed; central disc with a canaliculate longitudinal raised callus, Y-shaped furcate apex of callus with tufts of white hairs, with 2 small ligulate calli on both sides; column 2.5 mm long, extending into a short foot; anther cap 1 mm across; pollinia obliquely ellipsoid, with a short broad stipe.

分布

  • 台灣 : summit of Linungshan at ca. 1,000 m.
  • 世界 : The Philippines.

引證標本

PINGTUNG: Linungshan, Lin 188; Su & Chen 7788.

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