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

10. Pyrus pyrifolia (N. L. Burman) Nakai, Bot. Mag. (Tokyo). 40: 564. 1926.

沙梨 sha li

Ficus pyrifolia N. L. Burman, Fl. Ind. 226. 1768; Pyrus serotina Rehder.

Trees to 7–15 m tall. Branchlets purplish brown or dark brown when old, terete, tawny villous or tawny tomentose when young, soon glabrescent, glabrous when old, sparsely lenticellate; buds narrowly ovoid, apex obtuse; scales tomentose at margin and apex. Stipules caducous, linear-lanceolate, 1–1.5 cm, membranous, margin villous and entire, apex acuminate; petiole 3–4.5 cm, initially tomentose, glabrescent; leaf blade ovate-elliptic or ovate, 7–12 × 4–6.5 cm, glabrous or brown lanate when young, base rounded or subcordate, rarely broadly cuneate, margin spinulose-serrate, apex acute. Raceme umbel-like, 6–9-flowered; peduncle sparsely pubescent when young; bracts caducous, linear, 1–1.4 cm, membranous, villous at margin, apex acuminate. Pedicel 3.5–5 cm; sparsely pubescent when young. Flowers 2.5–3.5 cm in diam. Hypanthium cupular, abaxially glabrous. Sepals triangular-ovate, ca. 5 mm, abaxially glabrous, adaxially brown tomentose, margin glandular denticulate, apex acuminate. Petals white, ovate, 1.5–1.7 cm, base shortly clawed, apex rounded. Stamens 20, ca. 1/2 as long as petals. Ovary 5- or 4-loculed, with 2 ovules per locule; styles 5, rarely 4, nearly as long as stamens, glabrous. Pome brownish, with pale dots, subglobose, 2–2.5 cm in diam., (4- or)5-loculed; sepals caducous; fruiting pedicel 3.5–5.5 cm, subglabrous. Fl. Apr, fr. Aug. 2n = 34*, 51*.

Warm rainy regions; 100--1400 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang [Laos, Vietnam].

Many varieties of pear cultivated in the regions of the Chang Jiang and Zhu Jiang rivers belong to this species.


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