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FOC | Family List | FOC Vol. 25 | Orchidaceae | Cheirostylis

8. Cheirostylis takeoi (Hayata) Schlechter, Repert. Spec. Nov. Regni Veg. Beih. 4: 171. 1919.

全唇叉柱兰 quan chun cha zhu lan

Arisanorchis takeoi Hayata, Icon. Pl. Formosan. 4: 110. 1914; A. tairae Fukuyama; Cheirostylis anomala Ohwi; C. eglandulosa Averyanov; C. tairae (Fukuyama) Masamune; C. tatewakii Masamune; Goodyera tatewakii (Masamune) S. S. Ying.

Plants 12-22 cm tall. Rhizome creeping, moniliform, to 1.5 cm in diam.; roots hairlike, in 2-4 rows along rhizome internodes. Stem ascending, 1-2 cm, 2-6-leaved. Leaves often absent or withered at anthesis, subrosulate, pale green, ovate or broadly ovate, 2.5-4 × 2.5-3.5 cm, base rounded or subcordate, apex acute; petiole-like base and sheath 1-1.2 cm. Inflorescence 10-18 cm, sparsely pubescent, with 2 or 3 sheathing sterile bracts; rachis ca. 1 cm, 2-5-flowered; floral bracts ovate to ovate-lanceolate, 4-6 mm, equal in length to ovary, apex acuminate. Flowers barely opening, small; ovary and pedicel green, cylindric-fusiform, 5-6 mm, sparsely pubescent. Sepals greenish, 5-6 mm, connate for ca. 3/5 of length and forming a tube, sparsely pubescent on outer surface; tube slightly contracted at middle, 3-4 mm in diam.; apical lobes triangular. Petals appressed to dorsal sepal, whitish, oblong, oblique, falcate, 5-6 × ca. 1.5 mm, 1-veined, apex obtuse; lip simple, white, narrowly oblong, 6-8 × 2-2.5 mm, entire, lateral margins incurved, apex obtuse to subacute, recurved. Column 2-3.7 mm; stelidia variable, parallel to rostellum or malformed, green, usually much shorter than rostellum arms; anther ovoid, ca. 1.5 mm; pollinia ca. 1.5 mm; viscidium ca. 2 mm; rostellum arms elongate, 1.5-2 mm. Fl. Mar.

Broad-leaved forests; 100-1400 m. Taiwan [Japan (Ryukyu Islands), N Vietnam].


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