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Plants of Taiwan

  • Ponerorchis tominagai (Hayata) H.J. Su & J.J. Chen
    紅斑蘭   Endemic

    形態特徵

    TYPE! <em>Ponerorchis tominagai</em> (Hayata) H.J. Su & J.J. Chen

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    相關連結

    作者

    SU, Horng-Jye and CHEN, Jr-Jen

    形態特徵

    • Plants 6-22 cm tall. Tuberoids globose to ovoid, 4-9 mm across. Stem glabrous, pale green, with 1- 2 sheaths at base.
    • Leaves usually 2, alternate, spaced near middle of stem, rarely approximate near base of stem, linear-oblong or lanceolate, 3-7 cm long, 5-8 mm wide, apex acute, decurrent at base.
    • Spikes with 1-4 flowers, subsecund, 1-4 cm long; bracts green or purple, chartaceous, lanceolate, 5-12 mm long, 2-3 mm wide, apex acuminate, entire; pedicle and ovary 8-10 mm long, nearly straight. Flowers whitish or with purple or red dots on lip; dorsal sepal elliptic to oblong, concave, 5.5-7 mm long, 2-3 mm wide, acute or obtuse at apex, contracted at base; lateral sepals spreading, obliquely ovate-oblong, 7-9 mm long, 3-4 mm wide, apex acute, contracted at base; petals obliquely ovate-oblong, 5-6.5 mm long, 3 mm wide, apex obtuse, short clawed and obliquely auricled at base; lip white, sometimes with rose dots, obtriangular or obovate, narrowed at base, 8-12 mm long, 7-11 mm wide, entire or irregular serrate along front margin, 3-lobed, lateral lobes triangular, ovate-falcate or trapezoid, apex obtuse or acute, 3 mm long, central lobe ovate-quadrangular or obovate, 3-5 mm long, 4-5 mm wide, truncate and sometimes shortly aristate, or shallowly to deeply 2-lobed at apex, disc slightly keeled and pubescent along midrib, spur cylindrical, pointing downward, much shorter than length of lip blade, 4-5.5 mm long, 1-2.5 mm in diam., apex obtuse; column 2.5-3.5 mm tall; anther locules clavate, 1.5-2.5 mm long; pollinia ovoid, 0.5-1 mm long; viscidium ovoid.

    分布

    Taiwan: Alpine grasslands, scree slopes and crevices of rocks, 3,000-3,800 m.

    引證標本

    MIAOLI: Dabajianshan, Ying 4121, 4179. NANTOU: Yuhshan, Chen 317*, 324. Batongguan, Ying 1925. KAOHSIUNG: Kuhanosinshan, Hu 235. TAITUNG: Kuanshanlinshan, Su 9155.

    資料來源

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 1029.

    本種於 2000 年由 H. J. Su & J. J. Chen 在台灣記錄到後,目前已有 16 種學名、 3 種中文名及 3 種其他語言俗名曾在台灣被使用。

    本種共有 6 份 典藏標本

    <em>Ponerorchis tominagai</em> (Hayata) H.J. Su & J.J. Chen紅斑蘭