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

14. Cotoneaster hebephyllus Diels, Notes Roy. Bot. Gard. Edinburgh. 5: 273. 1912.

钝叶栒子 dun ye xun zi

Shrubs, sometimes treelike, deciduous, 1.5–3 m tall. Branchlets dark reddish brown, slender, initially pilose, soon glabrescent. Petiole 5–7 mm, sparsely tomentose-villous; stipules caducous at fruiting, linear-lanceolate, 3–4 mm, sparsely villous; leaf blade elliptic to broadly ovate, (1.5–)2–3 × (1–) 1.2–2 cm, subleathery, abaxially sparsely tomentose-villous or tomentose, with glaucous bloom, adaxially glabrous, base broadly cuneate to rounded, apex obtuse or emarginate, mucronate. Corymbs (1–)1.5–3 cm, 5–15-flowered; rachis and pedicels sparsely villous; bracts linear-lanceolate, 2–3 mm, slightly villous. Pedicel 2–3 mm. Hypanthium campanulate, abaxially glabrous or slightly pilose near base. Sepals broadly triangular, abaxially glabrous or puberulous only apically, apex acute. Petals spreading, white, suborbicular, 5–6 mm in diam., adaxially puberulous near base, base very shortly clawed, apex obtuse. Stamens 20, slightly shorter than petals; anthers purple. Ovary densely pilose apically; styles 2, free, somewhat not exceeding stamens. Fruit dark red, ovoid or pyriform, rarely oblong, (5–) 6–8 mm in diam., pyrenes 2, sometimes united into 1. Fl. May–Jun, fr. Aug–Sep.

Mountain regions, clearings at forest margins, thickets, river valleys; 1300--3400 m. Gansu, Hebei, Sichuan, SE Xizang, Yunnan.

1 Fruit 7–8 mm in diam.; leaf blade abaxially sparsely tomentose-villous.   (2)
+ Fruit 5–7 mm in diam.; leaf blade abaxially tomentose.   (3)
2 (1) Fruit usually ovoid, sometimes oblong,with 2 pyrenes usually united into 1.   14a var. hebephyllus
+ Fruit broadly pyriform, with 2 pyrenes not united.   14b var. majusculus
3 (1) Fruit pyriform; leaf blade abaxially densely gray or yellowish gray tomentose.   14c var. incanus
+ Fruit usually ovoid; leaf blade abaxially densely yellow tomentose.   14d var. fulvidus

Lower Taxa


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