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Plants of Taiwan

  • Nervilia plicata (Andr.) Schltr.
    紫背一點癀    

    形態特徵

    TYPE! <em>Nervilia plicata</em> (Andr.) Schltr.

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    相關連結

    作者

    SU, Horng-Jye

    形態特徵

    • Plants 15-20 cm tall. Corms whitish, globose to ellipsoid, 1-2 cm across, with 2-3 nodes.
    • Leaves short petiolate, orbicular-cordate, 4-6 cm across, rounded and short apiculate at apex, cordate at base, slightly wavy or nearly entire along margins, sometimes irregularly denticulate microscopically; upper surface pale green to dark green, often decorated with pale yellow patches, setulose, seta transparent and appearing whitish, sparse between veins, dense on veins; lower surfaces purplish, especially along veins; petiole 1.5-2.5 cm long.
    • Peduncle pale green, sometimes tinged purple, 8-15 cm tall, ca. 2 mm in diam., with 2 sheaths below, sheaths lanceolate, 2-3 cm long; racemes usually with 2 flowers; bracts lanceolate, 5 mm long, 1.5 mm wide; pedicel slender, 4-7 mm long; ovary enlarged, 3-6 mm long. Flowers greenish brown, with purple veins, perianth widely spreading; sepals spatulate, 15-20 mm long, 2.5- 4 mm wide, apex acute, lateral ones slightly oblique and keeled dorsally toward apex; petals linearoblanceolate, 14-18 mm long, 2-3 mm wide, acute; lip light purple on upper surface, with dark purple hue near middle veins, whitish on lower surface, rhombic-ovate, obscurely 3-lobed or nearly unlobed, 13-15 mm long, 11-13 mm wide when expanded, lateral sides or sidelobes erect and embracing column, apex or midlobe spreading, obtuse, often with longitudinal plica near tip; column white, clavate, 7 mm long, distinctly dilated at apex; anther white, short cucullate, 2 mm tall; pollinia clavate, 1.2 mm long; stigma rectangular, concave; rostellum nearly rectangular, truncate at apex.

    分布

    World: Southern China, Thailand, Loas, Myanmar, Sikkim, India, the Philippines, Malaysia, Papua New Guinea and Australia.
    Taiwan: Semideciduous forests in the southwestern lowlands and western side of the Hengchun peninsula.

    引證標本

    KAOHSIUNG: Meinung, Su 8307. PINGTUNG: Sheting, Su 7877*; Chineuling, Su & Chen 7886.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 979.

    本種於 1988 年由 Su 在台灣記錄到後,目前已有 5 種學名、 3 種中文名及 1 種其他語言俗名曾在台灣被使用。

    本種共有 7 份 典藏標本

    <em>Nervilia plicata</em> (Andr.) Schltr.紫背一點癀