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Plants of Taiwan

  • Luisia megasepala Hayata
    台灣釵子股   Endemic

    形態特徵

    TYPE! <em>Luisia megasepala</em> Hayata

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    相關連結

    作者

    SU, Horng-Jye

    形態特徵

    • Stems often pendulous or horizontal, ca. 5 mm in diam., to 50 cm long.
    • Leaves terete, 5-10 cm long, 2.5-4 mm thick, rigid, articulated with sheath; sheath 1-4 cm long.
    • Raceme axillary; peduncle 5-10 mm long; bract oval-triangular, 3 mm long, 5 mm wide, acute; pedicel and ovary 12-18 mm long, green, with purple spots. Flowers 1-3, with yellowish green sepals and petals; dorsal sepals elliptic, 13-17 mm long, 6-7 mm wide, obtuse, often with purple spots or short line outside; lateral sepals elliptic to obovate, 12-15 mm long, 6.5-7 mm wide, purple spotted, outside distinctly keeled; petals longer, obovate to spatulate, 17-20 mm long, 7-9 mm wide, obtuse; lip 3-lobed, 13-18 mm long, lateral lobes erect, ovatetriangular or rectangular, 3 mm long, 2 mm wide, green, with purple spots, midlobe dark purple nearly throughout, rectangular, 11-15 mm long, 7-9 mm wide, apex with 2 triangular lobules, sinus mucronate, lobules 4 mm long, obtuse; disc with 3-7 raised longitudinal ridges, often wrinkled laterally and appearing reticulate sulcate on entire surface; column stout, 5-6 mm high; anther cap whitish, oval, 3 mm long; pollinia ellipsoid, 1.5 mm long, stipe nearly as long, terminated with a viscidium, viscidium oval or triangular, 2.5 mm wide.
    • Capsules fusiform-cylindrical, 3-4 cm long.

    分布

    Taiwan: Central and southern mountains, 800-2,000 m.

    引證標本

    TAICHUNG: Pahsienshan, Su 8199, 8944. KAOHSIUNG: Luikuei, Su s. n. Feb 1970; Dona, Su et al. 7530. PINGTUNG: Nantawushan, Lin 305.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 729.

    本種於 1914 年由 Hayata 在台灣記錄到後,目前已有 1 種學名、 3 種中文名及 0 種其他語言俗名曾在台灣被使用。

    本種共有 1 份 典藏標本

    <em>Luisia megasepala</em> Hayata台灣釵子股