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

8. Cotoneaster glaucophyllus Franchet, Pl. Delavay. 222. 1890.

粉叶栒子 fen ye xun zi

Shrubs semievergreen, 2–5 m tall, much branched. Branchlets robust, dark grayish brown, terete, initially densely yellow pubescent, glabrous when old. Petiole thick, 4–6 mm, initially yellow pubescent, later glabrous; stipules mostly caducous, lanceolate, 4–5 mm, puberulous; leaf blade elliptic or narrowly elliptic to ovate, (1.5–)3–6 × 1.5–2.5 cm, lateral veins 5–8 pairs, abaxially initially slightly pubescent or tomentose, glabrescent, with bloom, adaxially glabrous, base broadly cuneate to rounded, apex acute or obtuse. Compound corymbs to 3–5 cm, densely 6–12- or 40–50-flowered or more; rachis and pedicels pubescent or tomentose; bracts caducous, subulate, 2–3 mm, slightly pubescent. Pedicel 2–4 mm. Flowers 7–8 mm in diam. Hypanthium campanulate, abaxially pilose. Sepals triangular, 1–2 × 1.5–2.5 mm, apex acute. Petals spreading, white, suborbicular or broadly obovate, 3–4 mm, adaxially puberulous near base, base shortly clawed, apex obtuse, rarely emarginate. Stamens 20, ca. as long as petals. Ovary puberulous apically; styles 2, free, nearly equalling or lower than stamens. Fruit reddish yellow, ovoid to obovoid, 6–7 mm in diam., glabrous when mature, pyrenes usually 2. Fl. Jun–Jul, fr. Sep–Oct.

Mixed forests, thickets, clearings, mountain regions and valleys; 1200--3000 m. Guangxi, Guizhou, Sichuan, Yunnan.


1 Leaf blade 3–6 cm, abaxially white tomentose or with soft yellow hairs.   (2)
+ Leaf blade 1.5–3 cm, abaxially yellow tomentose or slightly pubescent.   (3)
       
2 (1) Inflorescences with soft yellow hairs, to 40-flowered.   8a var. glaucophyllus
+ Inflorescences initially white tomentose, glabrescent, to more than 50-flowered.   8b var. serotinus
       
3 (1) Leaf blade abaxially initially densely yellow tomentose, glabrescent; inflorescences to 40-flowered, larger, initially densely white tomentose.   8c var. vestitus
+ Leaf blade abaxially slightly pubescent or subglabrous; inflorescences 6–12-flowered, smaller, with soft hairs.   8d var. meiophyllus

Lower Taxa


 

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