甘肃山楂 Crataegus kansuensis
中文名（Chinese Name）：甘肃山楂
学名（Scientific Name）：Crataegus kansuensis Wils.
英文名（English Common Name）：
别名（Chinese Common Name）：面旦子
异名（Synonym）：
科属（Family & Genus）：蔷薇科（Rosaceae）山楂属
形态特征（Description）：灌木或乔木，高2.5-8米；枝刺多，锥形，长约7-15毫米；小枝细，圆柱形，无毛，绿带红色，二年生枝光亮，紫褐色；冬芽近圆形，先端钝，无毛，紫褐色。叶片宽卵形，长4-6厘米，宽3-4厘米，先端急尖，基部截形或宽楔形，边缘有尖锐重锯齿和5-7对不规则羽状浅裂片，裂片三角卵形，先端急尖或短渐尖，上面有稀疏柔毛，下面中脉及脉腋有髯毛，老时减少，近于无毛；叶柄细，长1.8-2.5厘米，无毛；托叶膜质，卵状披针形，边缘有腺齿，早落。伞房花序，直径3-4厘米，具花8-18朵；总花梗和花梗均无毛，花梗长5-6毫米；苞片与小苞片膜质，披针形，长约3-4毫米，边缘有腺齿，早落；花直径8-10毫米；萼筒钟状，外面无毛；萼片三角卵形，长2-3毫米，约当萼筒之半，先端渐尖，全缘，内外两面均无毛；花瓣近圆形，直径3-4毫米，白色；雄蕊15-20；花柱2-3，子房顶端被绒毛，柱头头状。果实近球形，直径8-10毫米，红色或桔黄色，萼片宿存；果梗细，长1.5-2厘米；小核2-3，内面两侧有凹痕。花期5月，果期7-9月。
分布（Distribution）：产甘肃、山西、河北、陕西、贵州、四川，生于海拔1000-3000米杂木林中、山坡阴处及山沟旁。
用途（Use）：
引自中国植物志英文版：FOC Vol. 9 Page 116
Crataegus kansuensis E. H. Wilson, J. Arnold Arbor. 9: 58. 1928.
甘肃山楂 gan su shan zha| Rosaceae | Crataegus
Shrubs or small trees, 2.5–8 m tall, usually thorny; thorns many, ca. 0.7–1.5 cm. Branchlets greenish red, terete, slender, glabrous; buds purplish brown, suborbicular, glabrous. Stipules caducous, ovate-lanceolate, ca. 8 mm, membranous, subglabrous, margin glandular serrate, apex acute-acuminate; petiole 1.8–2.5 cm, glabrous; leaf blade broadly ovate, 4–6 × 3–4 cm, abaxially pubescent along veins and barbate in vein axils, later subglabrescent, adaxially sparsely pubescent, base truncate or broadly cuneate, margin sharply and doubly serrate, with 5–7 pairs of shallow lobes; lobes triangular-ovate, apex acute. Cormyb 3–4 cm in diam., 8–18-flowered: peduncle glabrous; bracts caducous, lanceolate, membranous. Pedicel 5–6 mm, glabrous. Flowers 8–10 mm in diam. Hypanthium campanulate, abaxially glabrous. Sepals triangular, 2–3 mm, both surfaces glabrous. Petals white, suborbicular, 5–6 × 3–4 mm. Stamens 15–20. Ovary tomentose apically, 2- or 3-loculed, with 2 ovules per locule; styles 2 or 3. Pome red or orangish yellow, subglobose, 8–10 mm in diam., glabrous; sepals persistent; pyrenes 2 or 3, with concave scars on both inner lateral sides. Fl. May, Jul–Sep. 2n = 34*.
Mixed forests, shaded slopes, stream sides; 1000--3000 m. Gansu, Guizhou, Hebei, Shaanxi, Shanxi, Sichuan.
（责任编辑：徐晔春）
学名（Scientific Name）：Crataegus kansuensis Wils.
英文名（English Common Name）：
别名（Chinese Common Name）：面旦子
异名（Synonym）：
科属（Family & Genus）：蔷薇科（Rosaceae）山楂属
形态特征（Description）：灌木或乔木，高2.5-8米；枝刺多，锥形，长约7-15毫米；小枝细，圆柱形，无毛，绿带红色，二年生枝光亮，紫褐色；冬芽近圆形，先端钝，无毛，紫褐色。叶片宽卵形，长4-6厘米，宽3-4厘米，先端急尖，基部截形或宽楔形，边缘有尖锐重锯齿和5-7对不规则羽状浅裂片，裂片三角卵形，先端急尖或短渐尖，上面有稀疏柔毛，下面中脉及脉腋有髯毛，老时减少，近于无毛；叶柄细，长1.8-2.5厘米，无毛；托叶膜质，卵状披针形，边缘有腺齿，早落。伞房花序，直径3-4厘米，具花8-18朵；总花梗和花梗均无毛，花梗长5-6毫米；苞片与小苞片膜质，披针形，长约3-4毫米，边缘有腺齿，早落；花直径8-10毫米；萼筒钟状，外面无毛；萼片三角卵形，长2-3毫米，约当萼筒之半，先端渐尖，全缘，内外两面均无毛；花瓣近圆形，直径3-4毫米，白色；雄蕊15-20；花柱2-3，子房顶端被绒毛，柱头头状。果实近球形，直径8-10毫米，红色或桔黄色，萼片宿存；果梗细，长1.5-2厘米；小核2-3，内面两侧有凹痕。花期5月，果期7-9月。
分布（Distribution）：产甘肃、山西、河北、陕西、贵州、四川，生于海拔1000-3000米杂木林中、山坡阴处及山沟旁。
用途（Use）：
引自中国植物志英文版：FOC Vol. 9 Page 116
Crataegus kansuensis E. H. Wilson, J. Arnold Arbor. 9: 58. 1928.
甘肃山楂 gan su shan zha| Rosaceae | Crataegus
Shrubs or small trees, 2.5–8 m tall, usually thorny; thorns many, ca. 0.7–1.5 cm. Branchlets greenish red, terete, slender, glabrous; buds purplish brown, suborbicular, glabrous. Stipules caducous, ovate-lanceolate, ca. 8 mm, membranous, subglabrous, margin glandular serrate, apex acute-acuminate; petiole 1.8–2.5 cm, glabrous; leaf blade broadly ovate, 4–6 × 3–4 cm, abaxially pubescent along veins and barbate in vein axils, later subglabrescent, adaxially sparsely pubescent, base truncate or broadly cuneate, margin sharply and doubly serrate, with 5–7 pairs of shallow lobes; lobes triangular-ovate, apex acute. Cormyb 3–4 cm in diam., 8–18-flowered: peduncle glabrous; bracts caducous, lanceolate, membranous. Pedicel 5–6 mm, glabrous. Flowers 8–10 mm in diam. Hypanthium campanulate, abaxially glabrous. Sepals triangular, 2–3 mm, both surfaces glabrous. Petals white, suborbicular, 5–6 × 3–4 mm. Stamens 15–20. Ovary tomentose apically, 2- or 3-loculed, with 2 ovules per locule; styles 2 or 3. Pome red or orangish yellow, subglobose, 8–10 mm in diam., glabrous; sepals persistent; pyrenes 2 or 3, with concave scars on both inner lateral sides. Fl. May, Jul–Sep. 2n = 34*.
Mixed forests, shaded slopes, stream sides; 1000--3000 m. Gansu, Guizhou, Hebei, Shaanxi, Shanxi, Sichuan.
（责任编辑：徐晔春）
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