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Plants of Taiwan

  • Vexillabium 旗唇蘭屬

    LEOU, Chong-Sheng

    本屬共有 2 種

    Terrestrial perennial herbs with underguound rhizome, without normal roots. Stems ascending, nodose, leafy. Leaves petiolate, ovate to lanceolate. Flowers few, terminal spike; sepals more or less connate at middle forming tube, dorsal one smaller, erect, lateral ones larger, connate at base and surrounding saccate base of lip; petals oblique, appressed to dorsal sepal forming hood; lip Y-or T-shaped, tripartite, hypochile produced into bilobed sac containing callose protuberance or papillae inside, mesochile contracted into narrow, entire or toothed claw, epichile dilated into flabellate and emarginate blade; column stout, erect; anther on dorsal side of column, 2-celled; pollinia 2, each in 2-partite, sectile, narrowed into short caudicle attaching to viscidium; stigma single, on ventral side of column below rostellum; rostellum erect, cleft, twisted at apex.

    More than five species; China, Japan, the Philippines and adjacent islands. Two species in Taiwan.

    Data Source

    SU, Horng-Jye. 2000. 38. ORCHIDACEAE. Flora of Taiwan, second edition (台灣植物誌第二版). 5: 1065.