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Plants of Taiwan

  • Neottia meifongensis (H. J. Su & C. Y. Hu) T. C. Hsu & S. W. Chung
    梅峰雙葉蘭   Endemic

    形態特徵

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    相關連結

    作者

    SU, Horng-Jye and HU, Chia-Ying

    形態特徵

    • Plants 12-25 cm tall, with short rhizomes and filiform clustered roots, bearing leaves near middle or upper part. Stems erect, pale green and ridged below leaves, puberulous and bearing 1-3 bract-like scales above leaves, scales ovate-lanceolate, 3-5 mm long.
    • Leaves sessile, broadly ovate or ovate-deltoid, 1.5-2.5 cm long, 1.8-3.2 cm wide, apex acute, truncate-sucordate at base, glabrous on both surfaces, membranaceous, with reticulate veinlets.
    • Raceme 3-6 cm long, loosely 3-7-flowered; bracts ovate-lanceolate, 3-4.5 mm long, 2 mm wide, acute; pedicel and ovary 6-8 mm long, glabrous or sometimes sparsely puberulous, ovary distinctly down-curved from pedicel. Flowers spreading, greenish, dorsal sepal lanceolate, 3-4.5 mm long, 1-2 mm wide, apex acute, slightly contracted at base; lateral sepals falcate-lanceolate, 3.5-5.5 mm long, 1.5-2.5 mm wide, apex acute, broadly cuneate at base; petals linear-lanceolate, 3-5 mm log, 0.7-1 mm wide, acuminate; lip spreading, cuneate-rectangular or oblong, 6-10 mm long, 3-7.5 mm wide, pale and white-ciliate along margin, 2-lobed, lobes ovate-oblong, 2 mm long, 1.5-2.5 mm wide, obtuse-rounded at apex, disc bearing median thickened keel running longitudinally from sinus toward base and ending at ca. 1/3 distance from base, base with lengthwise groove bordered by 2 lateral low ridges; column elongate, 4 mm long, top dilated and distinctly bent down from slender neck and stalk; anther, oblong, 1 mm long; pollinia clavate, unequally cleft, stigma semiorbicular; rostellum rectangular, 0.8 mm, truncate-mucronate at apex.

    分布

    Taiwan: Forests of Abies kawakamii and Tsuga chinensis var. formosana, 2,700-3,000 m, in central Taiwan.

    引證標本

    NANTOU: Meifong, Hu 226*; Hohuanshan, Su & Hu 9592; Hu 245. HUALIEN: North Hohuanshan, Hu 230; Su 9603.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 955.

    本種於 2009 年由 T. C. Hsu & S. W. Chung 在台灣記錄到後,目前已有 2 種學名、 1 種中文名及 0 種其他語言俗名曾在台灣被使用。

    本種共有 2 份 典藏標本

    <em>Neottia meifongensis</em> (H. J. Su & C. Y. Hu) T. C. Hsu &  S. W. Chung梅峰雙葉蘭