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

1. Phaius takeoi (Hayata) H. J. Su, Quart. J. Exp. Forest. Natl. Taiwan Univ. 3(4): 77. 1989.

长茎鹤顶兰 chang jing he ding lan

Calanthe takeoi Hayata, Icon. Pl. Formosan. 9: 111. 1920; Phaius longicruris Z. H. Tsi.

Plants to 100 cm tall. Pseudobulb stemlike, cylindric, 20-40 × 1.3-2 cm. Leaves 5-8, on upper part of pseudobulb; blade green, elliptic or elliptic-lanceolate, 22-40 × 5-8 cm, glabrous, apex long acuminate. Inflorescences arising from basal or lower nodes of pseudobulb, not exceeding height of leaves, 30-55 cm, 4-10-flowered, glabrous; floral bracts persistent, ovate-lanceolate, 0.5-1 cm. Flowers widely opening, 4-5 cm in diam.; pedicel and ovary 2-2.5 cm, sparsely puberulent; sepals and petals pale yellowish green. Sepals subsimilar, oblong to oblanceolate, 2.8-3.5 × 0.7-1 cm, abaxially sparsely puberulent, apex obtuse. Petals obovate-lanceolate, 2.8-3 × 0.6-0.8 cm, apex obtuse to acute; lip white, often tinged yellow, nearly orbicular, 2-2.5 × ca. 2 cm, shallowly 3-lobed; lateral lobes subovate, margin undulate, apex obtuse; mid-lobe orbicular-square, margin undulate, apex emarginate and sinus mucronate; disk with 2 or 3 yellow to yellowish green ridges; spur yellow or greenish yellow, hornlike, 0.3-0.8 cm, apex unlobed, slightly hooked. Column white, 1.5-2.5 cm, densely pubescent ventrally; rostellum ligulate; anther cap white. Fl. Oct-Nov.

Moist broad-leaved forests, dense forests along valleys; 500-1400 m. C Taiwan, S Yunnan [Vietnam].


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