ORCHIDACEAE - China

ORCHIDOIDEAE 105soid, with long caudicles and narrowly oblong viscidia; rostellumerect, short; stigma lobes separate, raised, elliptic, large,extending on either side of mouth of spur. Fl. Aug.● Forests, grasslands on slopes and along gullies; 2500–3300 m.W Sichuan, Xizang (Zayü), NW Yunnan.7. Platanthera exelliana Soó, Ann. Hist.-Nat. Mus. Natl.Hung. 26: 359. 1929.高 原 舌 唇 兰 gao yuan she chun lanPlatanthera elachyantha Tang & F. T. Wang.Plants 15–25 cm tall. Rootstock tuberous, fusiform, ca. 1.5cm. Stem erect or ascending, with a tubular sheath at base, 1- orrarely 2-leaved. Leaf basal, elliptic to oblong-elliptic, 2.5–10 ×0.7–3.5 cm, base sheathing, apex obtuse or acute. Peduncleslender, with 1 or 2 small, foliaceous bracts; rachis 2–10 cm,laxly 3–10-flowered; floral bracts lanceolate, 8–22 mm, apexacuminate. Flowers pale yellowish green; pedicel and ovaryslightly arcuate, cylindric-fusiform, 6–7 mm. Dorsal sepal erect,forming a hood with petals, narrowly oblong, 3.5–4.5 × 1.2–1.8mm, 1- or 3-veined, margin ciliate, apex obtuse; lateral sepalsreflexed, narrowly oblong, oblique, 4–5 × 1.5–1.8 mm, 1- or 3-veined, margin ciliate, apex slightly obtuse. Petals erect, narrowlytriangular-lanceolate, oblique, 3.5–5 × 1–1.5 mm, fleshy,apex obtuse; lip slightly recurved, ligulate to ligulate-lanceolate,3.8–5 × ca. 1.3 mm, thickened, entire, apex obtuse; spur pendulous,slightly incurved, cylindric, 8–10 mm, ca. as long as orexceeding ovary, somewhat dilated toward apex, apex obtuse.Column short; staminodes suborbicular, small; anther loculesparallel; connective very narrow; pollinia obovoid, with shortcaudicles and narrowly oblong viscidia; rostellum rather small;stigma lobes separate, raised, elliptic, extending on either sideof mouth of spur. Capsule ovoid. Fl. Aug–Sep.Alpine and subalpine meadows, scrub; 3300–4500 m. W Sichuan,SE Xizang, NW Yunnan (Dêqên, Gongshan, Zhongdian) [Bhutan, India(Sikkim), Nepal].8. Platanthera leptocaulon (J. D. Hooker) Soó, Ann. Hist.-Nat. Mus. Natl. Hung. 26: 360. 1929.条 叶 舌 唇 兰 tiao ye she chun lanHabenaria leptocaulon J. D. Hooker, Fl. Brit. India 6: 154.1890; Platanthera silaensis Handel-Mazzetti.Plants 19–25 cm tall. Rootstock creeping, cylindric, stoloniferous.Stem erect, with 1 or 2 sheaths at base, 1- or rarely2-leaved. Leaf cauline, linear to linear-oblong, 3.5–8.5 × 0.7–1.4 cm, base clasping, apex acute to subobtuse. Peduncle slender,with 1–3 foliaceous, linear-lanceolate bracts; rachis 4.5–9cm, laxly 3–6-flowered; floral bracts erect, lanceolate to ovatelanceolate,10–12 mm, apex acuminate. Flowers yellowishgreen; pedicel and ovary cylindric-fusiform, ca. 10 mm. Dorsalsepal erect and forming a hood with petals, sublanceolate, ca. 6× 2–2.2 mm, 3-veined, margin ciliate, apex obtuse; lateral sepalsreflexed, lanceolate, slightly oblique, ca. 6 × 2–2.1 mm, 3-veined, margin ciliate, apex obtuse. Petals triangular-lanceolate,oblique, ca. 6 × 2 mm, fleshy, 1-veined, apex acute; lip ligulatelanceolate,5.5–8 × 1–1.3 mm, thickened, entire, apex obtuse;spur pendulous, cylindric, 12–20 mm, usually much longer thanovary, slender. Column erect, short; staminodes subelliptic,small; anther locules nearly parallel; pollinia ellipsoid, withshort caudicles and suborbicular viscidia; rostellum erect, short;stigma lobes separate, raised, elliptic-oblong, extending oneither side of mouth of spur. Fl. Aug–Oct.Forests, grasslands on slopes; 3000–4000 m. SW Sichuan, SXizang, NW Yunnan [Bhutan, NE India, Nepal].9. Platanthera mandarinorum H. G. Reichenbach, Linnaea25: 226. 1852.尾 瓣 舌 唇 兰 wei ban she chun lanPlants 10–50 cm tall. Rootstock tuberous, ovoid to fusiform,3–8 × 0.4–0.8 cm. Stem erect, with 2 or 3 tubular sheathsat base, 1- or 2-leaved. Leaves basal or cauline, alternate, narrowlyelliptic, oblong, or linear-lanceolate, 3–12 × 0.8–3 cm,base clasping, apex acute or obtuse. Peduncle slender to somewhatrobust, distinctly ridged, with several foliaceous, lanceolatebracts; rachis 3–22 cm, laxly to subdensely 3–20-flowered;floral bracts lanceolate to ovate-lanceolate, 8–20 mm, equal toor exceeding ovary. Flowers pale greenish yellow to green;pedicel and ovary arcuate, narrowly fusiform, 10–14 mm. Dorsalsepal not connivent with petals, broadly ovate to cordate ordeltoid, concave, 4–7 × 3–5.5 mm, glabrous, 3-veined, apexobtuse or bluntly rounded; lateral sepals spreading or reflexed,oblong-lanceolate to broadly lanceolate or linear-lanceolate,oblique, 5–9 × 1.3–3.5 mm, glabrous, 3-veined, apex acute toacuminate. Petals spreading, ovate-lanceolate or ovate-linear,oblique, 6–9 × 3–4 mm, 3-veined, apex acute or obtuse; lippendulous, linear-lanceolate to ligulate, 7–10 × 1–2.5 mm, entire,apex obtuse; spur pendulous, spreading horizontally, orcurving upward, cylindric, 8–30 mm, obtuse to acute. Column3–4 mm; staminodes ellipsoid, conspicuous; anther loculesdivergent or parallel, connective 2–3 mm wide, apex emarginate;pollinia ellipsoid, with long caudicles and suborbicularviscidia; rostellum broadly triangular; stigma lobes confluent,transversely oblong, concave, lying directly below rostellum.Forests, forest margins, alpine or moist grasslands; 300–3200 m.Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan,Jiangsu, Jiangxi, Shandong, Sichuan, Taiwan, NE Yunnan, Zhejiang[Japan, Korea].1a. Lateral sepals linear-lanceolate, 1.3–2mm wide, dorsal sepal deltoid .......... 9b. subsp. formosana1b. Lateral sepals oblong-lanceolate tobroadly lanceolate, (1.5–)2–3.5 mmwide, dorsal sepal broadly ovate tocordate.2a. Spur usually spreading horizontallyor upcurved, (15–)20–30 mm;anther locules divergent .... 9a. subsp. mandarinorum2b. Spur pendulous, 8–15 mm;anther locules parallel ........... 9c. subsp. pachyglossa9a. Platanthera mandarinorum subsp. mandarinorum尾 瓣 舌 唇 兰 ( 原 亚 种 ) wei ban she chun lan (yuan ya zhong)Habenaria mandarinorum (H. G. Reichenbach) Herklots;Platanthera cornu-bovis Nevski; P. delavayi Schlechter; P.mandarinorum var. cornu-bovis (Nevski) Kitagawa; P. man-