22. CLINTONIA Rafinesque, Amer. Monthly Mag. & Crit. Rev. 2: 266

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22. CLINTONIA Rafinesque, Amer. Monthly Mag. & Crit. Rev. 2: 266 Flora of China 24: 150–151. 2000. 22. CLINTONIA Rafinesque, Amer. Monthly Mag. & Crit. Rev. 2: 266. 1818. 七筋菇属 qi jin gu shu Chen Xinqi (陈心启 Chen Sing-chi); Minoru N. Tamura Herbs perennial, with a short rhizome. Leaves several, basal, entire. Scape erect, often leafless. Inflorescence terminal, umbellate or racemose, rarely 1-flowered; rachis and pedicels usually elongate in fruit. Flowers small. Tepals 6, free, ascending to spreading, subequal. Stamens 6, inserted at base of tepals; filaments filiform; anthers pseudobasifixed, ellipsoid, semiextrorse. Ovary ovoid-globose, (2 or)3-loculed; ovules several to many per locule. Style columnar; stigma obscurely 3-lobed. Fruit a berry. Seeds 2 or more; testa usually brownish. Five species: temperate to subarctic regions of E Asia and North America; one species in China. Although Tamura (in Kubitzki, Fam. Gen. Vasc. Pl. 3: 350. 1998) placed Clintonia in the Liliaceae sensu stricto, Wu Zhengyi (editor’s note) believes it should be treated in the segregate family Medeolaceae. Takhtajan (Diversity Classific. Fl. Pl. 487. 1997) recognized Medeolaceae but placed Clintonia in the Uvulariaceae (pp. 482–483). 1. Clintonia udensis Trautvetter & C. A. Meyer in Middendorff, Reise Sibir. 1(Theil 2, Bot. Lief. 3): 92. 1856. 七筋菇 qi jin gu Clintonia alpina Kunth ex Baker; C. udensis var. alpina (Kunth ex Baker) H. Hara. Rhizome stiff, ca. 5 mm in thick, covered with fibrous sheaths. Leaves 3–5, ± petiolate, obovate, elliptic-obovate, or oblanceolate, 8–25 × 3–16 cm, margin pubescent when young. Scape 10–20 cm, usually to 60 cm in fruit, leafless, densely white pubescent. Raceme 3–12-flowered; bracts caducous; ped- icels densely pubescent, 1–7 cm in fruit. Tepals white or some- times bluish, oblong, 7–12 × 3–4 mm, puberulent abaxially. Sta- mens 4–6(–8) mm. Pistil 6–8 mm; style 3–5 mm. Berry black- ish blue, globose or ellipsoid, 7–12 × 7–10 mm, many seeded. Fl. May–Jun, fr. Jul–Oct. 2n = 14, 28. Sparse forests, alpine forests; 1600–4000 m. Gansu, Hebei, Hei- longjiang, Henan, Hubei, Jilin, Liaoning, Shaanxi, Shanxi, Sichuan, Xi- zang, Yunnan [Bhutan, India, Japan, Korea, Myanmar, Russia (Far East, Siberia), Sikkim]. Flora of China 24: 150–151. 2000. .
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