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

12. Ponerorchis takasagomontana (Masamune) Ohwi, Acta Phytotax. Geobot. 5: 146. 1936.

高山小红门兰 gao shan xiao hong men lan

Orchis takasagomontana Masamune, Trop. Hort. 3: 45. 1933 ["takasago-montana"]; Chusua takasagomontana (Masamune) P. F. Hunt; O. chingshuishania S. S. Ying.

Plants 14-33 cm tall. Tubers globose or ovoid, 10-20 mm. Stem purplish, often with dark striations, 8-17 cm, with 1 or 2 tubular sheaths at base, 2-5-leaved. Leaves cauline, alternate, widely spaced, green, lacking purple spots, linear-lanceolate or oblong-lanceolate, 3-9 × 0.5-1.4 cm, becoming smaller and bractlike above, glabrous, apex acute or acuminate. Inflorescence erect, purplish, often with dark striations, 4-13 cm, glabrous; rachis 2-10 cm, 5-17-flowered; floral bracts green or purple, lanceolate, 10-15 mm, shorter than to slightly exceeding ovary, apex acuminate. Flowers pale purple or rose, rarely white, medium-sized; pedicel and ovary fusiform, 6-15 mm. Dorsal sepal ovate or elliptic, concave, 4-5 × 2-3 mm, apex acute or obtuse; lateral sepals ovate-falcate, oblique, 5-6 × 2-4 mm, apex obtuse. Petals forming a loose hood with dorsal sepal, ovate or elliptic, oblique, 4-5 × 2-3 mm, margin ciliate, apex obtuse; lip tinged pale yellow toward base and spotted with purple, oblong to obovate, 6-10 × 6-8 mm, spurred, 3-lobed below middle; lateral lobes ovate to suboblong, 2-4 × 2-3 mm, apex obtuse; mid-lobe oblong to obovate-oblong, 4-6 × 3.5-4.5 mm, longer than narrow, ridged at base, apex truncate, entire to shallowly emarginate; spur pendulous, cylindric, 8-12 × 2.5-3 mm, usually shorter than ovary. Fl. Apr.

● Cliffs, crevices in limestone rocks; 1500-2000 m. C and E Taiwan.


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