65. Corymborkis Thouars, Nouv. Bull. Sci. Soc. Philom. Paris. 1: 318. 1809.
管花兰属 guan hua lan shu
Authors: Xinqi Chen, Stephan W. Gale & Phillip J. Cribb
Corymbis Thouars; Hysteria Reinwardt; Rynchanthera Blume; Tomotris Rafinesque.
Herbs, terrestrial. Rhizome short; roots slender, wiry. Stem 1 or several arising from same rhizome, unbranched, slender, reedlike. Leaves many, distichous, often large, ovate to elliptic, papery, plicate, base contracted into amplexicaul sheaths. Inflorescence an axillary raceme or panicle, conspicuously shorter than leaves, few to many flowered; peduncle often enclosed in leaf sheaths. Flowers scented, distichously arranged, resupinate or not, usually greenish white to yellow; pedicel short. Sepals and petals subequal, rather long and narrow, spreading, connivent or connate at base. Petals slightly wider than sepals; lip ca. as long as petals or slightly shorter, embracing column, with 2 longitudinal ridges. Column erect, slightly shorter than lip, slender, apex dilated and with 2 auricles; anther inserted on dorsal side of column, erect, suboblong or ovate-oblong; pollinia 2, granular-farinaceous, sectile; caudicle slender; viscidium subpeltate; stigma with 2 outwardly curved lobes; rostellum prominent, taller than anther, bifid. Capsule strongly 6-ridged, apex with persistent column.
Seven species: pantropical; one species in China.
