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Plants of Taiwan

  • Geodorum densiflorum (Lam.) Schltr.
    垂頭地寶蘭    

    形態特徵

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    相關連結

    作者

    SU, Horng-Jye

    形態特徵

    • Deciduous herbs. Roots ca. 4 mm in diam. Corms, 1-5 cm in diam., usually with 2-3 internodes. Stems short or obscure, often with 3 leaves at apex.
    • Leaves oblong, 15-30 cm long, 4-6 cm wide, apex acute, base cuneate, plicate.
    • Peduncle as long as leaves, ca. 5-7 mm in diam., erect but bent down near apex, with 2 or 3 sheaths below; bracts lanceolate, 5-9 mm long. Flowers dense, pale pink or nearly white, perianth not opening widely; sepals and petals oblong, 9-12 mm, 3-4 mm wide, obtuse; lip cymbiform, 9-12 mm long, 8 mm wide, base shallowly saccate, apex truncate or emarginate, undulate, disc with fleshy longitudinal ridge, ridge yellow, bilobed at apex, with 2 small pubescent calli at base; column ca. 4 mm long, foot 2 mm long; anther white, orbicular-ovate, 1.5 mm long; pollinia ellipsoid, 1 mm long, with rectangular stipe of same length.
    • Fruits fusiform, to 4 cm long, peduncle straightened and elongate at maturity.

    分布

    World: Southern China, the Ryukyus, the Philippines and Indochina, through Malaysia to Papua New Guinea and Australia.
    Taiwan: Semideciduous forests at low elevations in the southern part, also on Lanyu Is.

    引證標本

    KAOHSIUNG: Maolin, Su & Chen 8602; Wangshan, Su & Chen 8936. PINGTUNG: Kentin, Su 7949; Laofushan, Su & Chen 7968*. TAITUNG: Lanyu Is., Su 32.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 896.

    本種於 1975 年由 Lin 在台灣記錄到後,目前已有 2 種學名、 1 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>Geodorum densiflorum</em> (Lam.) Schltr.垂頭地寶蘭