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

3. Platanthera damingshanica K. Y. Lang & H. S. Guo, Fl. Zhejiang. 7: 552. 1993.

大明山舌唇兰 da ming shan she chun lan

Plants 32-47 cm tall. Rootstock creeping, cylindric, stoloniferous. Stem slender, with tubular sheaths at base, 1-leaved. Leaf basal, narrowly oblanceolate to oblong, 7-15 × 1-2.2 cm, base contracted and clasping, apex obtuse. Peduncle slender, with 1-3 scattered bracts; rachis 6-11 cm, laxly 3-8-flowered; floral bracts lanceolate, 6-13 mm. Flowers yellowish green; pedicel and ovary cylindric, 6-12 mm. Dorsal sepal erect, forming a hood with petals, broadly ovate, cymbiform, 4.5-6 × 3-4.5 mm, glabrous, 3-veined, apex acute; lateral sepals reflexed, narrowly oblong to linear, oblique, ca. 7 × 2 mm, glabrous, 3-veined, apex obtuse. Petals erect, ovate, oblique, 4-5.5 × 2-3.5 mm, 2-veined, apex acute; lip linear-ligulate, 6-8 × ca. 1 mm, entire, apex obtuse; spur pendulous, cylindric, 12-14 mm. Column ca. 4 mm; anther locules nearly parallel; pollinia obovoid, with long caudicles and suborbicular viscidia; rostellum rather large; stigma lobes confluent, concave, lying directly below rostellum. Fl. May.

● Dense forests on slopes, shaded and humid places along valleys. Fujian, Guangdong, Guangxi, Hunan, Zhejiang.


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