ORCHIDACEAE - China

ORCHIDOIDEAE 109Habenaria transnokoensis (Ohwi & Fukuyama) S. S.Ying; Platanthera longibracteata Hayata; P. transnokoensisOhwi & Fukuyama; Tulotis transnokoensis (Ohwi & Fukuyama)S. S. Ying; T. ussuriensis (Regel) H. Hara var. transnokoensis(Ohwi & Fukuyama) T. S. Liu & H. J. Su.Plants 25–60 cm tall. Rootstock tuberous, clavate-fusiform,1.5–6 × 0.4–0.9 cm. Stem erect, stout, with severaltubular sheaths, 1–3-leaved. Leaves cauline, alternate, widelyspaced, ovate-oblong to lanceolate, 8–15 × 2.5–5 cm, baseclasping, apex obtuse. Peduncle with several scattered, foliaceous,lanceolate bracts; rachis 10–30 cm, subdensely todensely 10–40-flowered; floral bracts lanceolate, 8–27 mm,exceeding ovary. Flowers whitish green to nearly white; pediceland ovary arcuate, cylindric-fusiform, 6–18 mm. Dorsal sepalforming a hood with petals, narrowly ovate, concave, 3–3.5 ×ca. 2 mm, glabrous, 3-veined, apex obtuse; lateral sepals reflexedor spreading, ovate-lanceolate, falcate, 4–4.5 × ca. 2 mm,glabrous, 3-veined, apex obtuse. Petals oblong, oblique, 3–3.5 ×1.5–2 mm, 2-veined, apex obtuse; lip strongly deflexed, broadlylinear, 5–7 × 1–1.2 mm, entire, apex obtuse; disk with an oblongcallus in front of mouth of spur; spur spreading horizontally,slightly arcuate, cylindric, 10–20 mm, slender, apex obtuse.Column 2–2.5 mm; staminodes ellipsoid, small, inconspicuous;anther locules parallel; connective narrow; polliniaellipsoid, with long caudicles and small, narrowly triangularviscidia; rostellum concave, V-shaped; stigma lobes confluent,concave, anterior margin slightly protruding. Fl. Jul–Sep. 2n =42.Alpine grasslands, sparse forests; 2000–3000 m. C and N Taiwan[Japan, Russia (Sakhalin)].21. Platanthera minor (Miquel) H. G. Reichenbach, Bot. Zeitung(Berlin) 36: 75. 1878.小 舌 唇 兰 xiao she chun lanHabenaria japonica (Thunberg) A. Gray var. minorMiquel, Ann. Mus. Bot. Lugduno-Batavi 2: 207. 1865; H.henryi Rolfe; H. multibracteata W. W. Smith; Platantherahenryi (Rolfe) Kraenzlin; P. interrupta Maximowicz; P. multibracteata(W. W. Smith) Schlechter; P. sigeyosii Masamune.Plants 20–60 cm tall. Rootstock tuberous, fusiform, elongate,1.5–6 × 0.4–1.5 cm. Stem erect, stout, with 1 or 2 tubularsheaths at base, 1- or 2(or 3)-leaved. Leaves cauline, alternate,usually widely spaced, elliptic, ovate-elliptic, or oblong-lanceolate,6–15 × 2–5 cm, base clasping, apex acute or obtuserounded.Peduncle robust, ridged, with 2–5 foliaceous, lanceolatebracts; rachis 10–18 cm, laxly many flowered; floral bractsovate-lanceolate, 8–20 mm, basal ones exceeding flowers, apexacuminate. Flowers yellowish green; pedicel and ovary slightlyarcuate, cylindric-fusiform, 10–15 mm. Dorsal sepal erect,forming a hood with petals, broadly ovate, concave, 4–5 × 3.5–4 mm, glabrous, 3-veined, apex obtuse or acute; lateral sepalsreflexed, elliptic, oblique, 5–6(–7) × 2.5–3 mm, glabrous, 3-veined, apex obtuse. Petals ovate, oblique, 4–5 × 2–2.5 mm, 2-veined, apex obtuse; lip spreading horizontally to slightly pendulous,ligulate, 5–8 × 1.5–2.5 mm, entire, apex obtuse; spurpendulous, cylindric, 11–18 mm, apex obtuse or acute. Column3–4 mm; staminodes conspicuous; anther locules slightlydivergent; connective broad, apex concave; pollinia obovoid,with slender caudicles and suborbicular viscidia; rostellumbroad, short; stigma lobes confluent, concave, large, lyingdirectly below rostellum. Fl. May–Jul. 2n = 42.Forests on slopes, alpine meadows; 200–3000 m. Anhui, Fujian,Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu,Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, Korea].22. Platanthera densa Freyn, Oesterr. Bot. Z. 46: 96. 1896.多 叶 舌 唇 兰 duo ye she chun lanPlatanthera chloranthella Nakai; P. chlorantha var. orientalisSchlechter; P. densa subsp. orientalis (Schlechter) Efimov.Plants ca. 30 cm tall. Rootstock narrowly fusiform, shortly2-lobed, ca. 4 × 1.3 cm. Stem erect, with 2 tubular sheaths atbase, 2-leaved. Leaves cauline, elliptic, 6–7 × 2–3 cm, contractedand clasping at base, apex obtuse. Peduncle with 1lanceolate bract; rachis ca. 6 cm, subdensely 15-flowered; floralbracts ovate-lanceolate, ca. 15 × 5 mm, slightly exceedingovary. Flowers green; pedicel and ovary ca. 8 mm. Dorsal sepalerect, forming a hood with petals, cordate-ovate, ca. 5 × 7 mm,apex obtuse; lateral sepals elliptic, oblique, shorter and narrowerthan dorsal sepal. Petals lanceolate, ca. 3 mm, apexabruptly cuspidate; lip spreading forward, ligulate, ca. 10 × 2.5mm, entire, apex obtuse; spur spreading horizontally, ca. 20mm, much longer than ovary. Fl. Jun.Alpine meadows. China (without precise locality) [Korea, Russia(Far East)].Material of this species has not been seen. It is possibly conspecificwith Platanthera minor.23. Platanthera ussuriensis (Regel) Maximowicz, Bull. Acad.Imp. Sci. Saint-Pétersbourg 31: 107. 1887.东 亚 舌 唇 兰 dong ya she chun lanPlatanthera tipuloides Lindley var. ussuriensis Regel,Tent. Fl. Ussur. 157. 1861; Habenaria shensiana Kraenzlin; H.ussuriensis (Regel) Miyabe; Perularia shensiana (Kraenzlin)Schlechter; P. ussuriensis (Regel) Schlechter; Platantheraherbiola Lindley var. japonica Finet; P. shensiana (Kraenzlin)Tang & F. T. Wang; Tulotis shensiana (Kraenzlin) H. Hara; T.ussuriensis (Regel) H. Hara.Plants 20–55 cm tall. Rootstock creeping, 2–4 cm, slender,stoloniferous. Stem erect, slender, with 1 or 2 tubular sheaths atbase, 2- or 3-leaved. Leaves cauline, widely spaced, spatulate tonarrowly oblong, 6–14 × 1.2–2.5(–3) cm, base clasping, apexobtuse or acute. Peduncle slender, with 1 to several small, lanceolatebracts; rachis 6–10 cm, laxly 10–20-flowered; floralbracts narrowly lanceolate, 8–11 mm, apex acuminate. Flowerspale yellowish green; pedicel and ovary cylindric, 8–9 mm.Dorsal sepal erect, forming a hood with petals, broadly ovate,concave, 2.5–3 × 2–2.5 mm, glabrous, 3-veined, apex obtuse;lateral sepals spreading or reflexed, narrowly elliptic, slightlyoblique, ca. 3 × 1 mm, glabrous, 3-veined, apex obtuse. Petalsnarrowly oblong-lanceolate, 2.5–3 × ca. 1 mm, slightly fleshy,1-veined, apex obtuse or subtruncate; lip pendulous, slightlydeflexed, narrowly ligulate-lanceolate, ca. 4 × 1 mm, with smalllateral lobes at base, apex obtuse; basal lobes suborbicular, apexrounded; mid-lobe ligulate-lanceolate or ligulate, apex obtuse;