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FOC | Family List | FOC Vol. 9 | Rosaceae | Cotoneaster

55. Cotoneaster nitidus Jacques, J. Soc. Imp. Centr. Hortic. 5: 516. 1859.

两列栒子 liang lie xun zi

Shrubs deciduous or semievergreen, erect, to 2.5 m tall. Branchlets ± dichotomously arranged, grayish brown when old, terete, initially densely yellow strigose, gradually glabrescent. Petiole 1–3 mm, villous; stipules persistent, lanceolate, 2–4 mm, pilose; leaf blade broadly ovate or broadly obovate, (0.4–)0.8–1.5(–2.5) × (0.5–)0.7–1.3(–1.8) cm, midvein raised abaxially and impressed adaxially, both surfaces appressed villous, more densely so adaxially, base rounded or broadly cuneate, apex acute and mucronate, rarely obtuse. Inflorescences 1-flowered. Pedicel 1–2 mm. Flower 5–7 mm in diam. Hypanthium campanulate, abaxially glabrous. Sepals broadly triangular, 1–2 × 2–3 mm, apex ± acute or obtuse. Petals erect, white or stained reddish, ovate or suborbicular, 3–4 mm in diam., apex obtuse. Stamens 20, shorter than petals. Ovary pubescent apically; styles (2 or)3(or 4), free, somewhat not exceeding stamens. Fruit nodding, red, broadly obovoid, 7–8 mm in diam., shortly puberulous, pyrenes (2 or)3(or 4). Fl. Jun–Jul, fr. Sep–Oct.

Thickets, forests, grassy slopes, mountain regions and valleys; 1600--4000 m. Sichuan, Xizang, Yunnan [Bhutan, NE India, N Myanmar, Nepal, Sikkim].

1 Leaf blade 4–7 × 5–6 mm, apex obtuse or emarginate.   55c var. parvifolius
+ Leaf blade 8–15(–25) × 7–13(–18) mm, apex acute.   (2)
2 (1) Leaf blade 8–15(–20) × 7–13(–15) mm, apex acute and abruptly mucronate, rarely obtuse.   55a var. nitidus
+ Leaf blade 12–25 × 12–18 mm, apex acute and shortly mucronate.   55b var. duthieanus

Lower Taxa


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