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

39. Sorbus arguta T. T. Yu, Acta Phytotax. Sin. 8: 223. 1963.

锐齿花楸 rui chi hua qiu

Aria yuarguta H. Ohashi & H. Iketani.

Trees small, 4–5 m tall. Branchlets reddish brown when young, dark gray or black grayish brown when old, sparsely pubescent when young, glabrous when old; buds ovoid, 5–8 mm, apex acute; scales several, brownish, glabrous. Leaves simple; petiole ca. 1 cm, glabrous when mature; leaf blade pale green abaxially, dark green adaxially, oblong-ovate or ovate-lanceolate, 6–10 × 2.5–4 cm, lateral veins 13–18 pairs, nearly parallel and terminating in marginal teeth, distinctly raised abaxially and impressed adaxially, abaxially usually with few tomentose hairs in axils of veins, adaxially puberulent when young, glabrous when old, base broadly cuneate to subrounded, margin sharply incised doubly serrate or lobed, apex acuminate. Compound corymbs terminal, 3–4 × 2–4 cm in fruit, few flowered; rachis and pedicels sparsely pubescent, glabrous when old, with sparse, inconspicuous lenticels. Flowers not seen. Fruit reddish brown, nearly globose, 1–1.2 cm in diam., 4-loculed, with many small white lenticels; sepals persistent, triangular, ca. 2 mm, puberulent, apex ± acute; fruiting pedicels 7–8 mm. Fr. Aug–Sep.

Mixed forests on slope; 1000--1300 m. S Sichuan, Yunnan.


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