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

2. Crataegus scabrifolia (Franchet) Rehder, J. Arnold Arbor. 12: 71. 1931.

云南山楂 yun nan shan zha

Pyrus scabrifolia Franchet, Pl. Delavay. 229. 1890; Crataegus bodinieri H. Léveillé; C. henryi Dunn.

Trees deciduous, to 10 m tall; branches usually unarmed. Branchlets purplish brown when young, grayish brown when old, terete, initially glabrous or subglabrous; buds purplish red, triangular-ovoid, glabrous. Stipules caducous, linear-lanceolate, ca. 8 mm, membranous, glabrous, margin glandular serrate, apex acuminate; petiole 1.5–4 cm, glabrous; leaf blade ovate-lanceolate to ovate-elliptic or rhombic-ovate, 4–3 × 2.5–4.5 cm, abaxially villous only along midvein and lateral veins, pilose or subglabrous, adaxially slightly pubescent when young, glabrescent, base cuneate, margin sparsely irregularly and doubly obtusely serrate, usually not lobed or those of sterile shoots sparsely irregularly 3–5-lobed apically, apex acute. Corymb or compound corymb, 4–5 cm in diam., many flowered; peduncle glabrous; bracts caducous, linear-lanceolate, membranous. Pedicel 5–10 mm, glabrous. Flowers ca. 1.5 cm in diam. Hypanthium campanulate, abaxially glabrous. Sepals triangular-ovate or triangular-lanceolate, 3–4 mm, abaxially glabrous. Petals white, suborbicular or obovate, ca. 8 × 6 mm. Stamens 20. Ovary grayish white tomentose apically; styles 3–5. Pome yellow or reddish, depressed-globose, 1.5–2.5 cm in diam., glabrous; sepals persistent; pyrenes 5, smooth on both inner sides. Fl. Apr–Jun, fr. Aug–Oct. 2n = 34*.

Margins of Pinus forests, among shrubs, mixed river side forests; 1500--3000 m. Guangxi, Guizhou, Sichuan, Yunnan.


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