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Plants of Taiwan

  • Thrixspermum formosanum (Hayata) Schltr.
    台灣風鈴蘭    

    形態特徵

    TYPE! <em>Thrixspermum formosanum</em> (Hayata) Schltr.

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    相關連結

    作者

    SU, Horng-Jye

    形態特徵

    • Stem 1-2 cm long.
    • Leaves distichous, linear-lanceolate, 4-6 cm long, 4-9 mm wide, apex acute or sometimes bifid, base narrowed, thick and fleshy, midrib sulcate on upper surface, keeled on lower surface, green, often spotted with purple.
    • Racemes axillary; peduncle suberect, straight, to 6 cm long, slender; rachis thickened; bracts ovate, 1 mm long; pedicel and ovary 6-9 mm long. Flowers opening 1 or 2 at a time, white, ca. 1.2 cm in diam., short lived, fragrant; dorsal sepal oblong, 5-7 mm long, 2-3 mm wide, obtuse; lateral sepals obovate, 5-7 mm long, 3-4 mm wide, obtuse or acute at apex, contracted at base, slightly oblique; petals falcate, oblong, 5-9 mm long, 1.5-2.5 mm wide, truncate at apex; lip white, marked with brownish lines, saccate at base, 3-lobed, sac 6 mm long, shallowly bilobed at bottom, lateral lobes erect, 2-3 mm long, 4 mm wide, midlobe obscure, disc pubescent, with a longitudinal callus running from base to midlobe, apex of callus protruding, notched below midlobe; column 2 mm long, with a foot ca. 2 mm long; pollinia 4, nearly equal, 1 mm long.
    • Capsules linear cylindrical, 5-8 cm long.

    分布

    World: Vietnam.
    Taiwan: Forests at 500-1,500 m in center and south.

    引證標本

    NANTOU: Sun Moon Lake, Su 8207; Chingshuikow, Su 7740. KAOHSIUNG: Taoyuen, Su 8950. PINGTUNG: Nanjenshan, Su & Chen 6920; Linungshan, Su & Chen 9277.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 1049.

    本種於 1919 年由 Schltr. 在台灣記錄到後,目前已有 5 種學名、 6 種中文名及 2 種其他語言俗名曾在台灣被使用。

    本種共有 11 份 典藏標本

    <em>Thrixspermum formosanum</em> (Hayata) Schltr.台灣風鈴蘭