斑点虎耳草Saxifraga nelsoniana
中文名（Chinese Name）：斑点虎耳草
学名（Scientific Name）：Saxifraga nelsoniana D. Don
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Micranthes nelsoniana (D. Don) Small Micranthes aestivalis (Fisch. et C. A. Mey.) Small Saxifraga punctata subsp. nelsoniana (D. Don) Hultén Saxifraga aestivalis Fisch. et C. A. Mey.
科属（Family & Genus）：虎耳草科（Saxifragaceae）虎耳草属
形态特征（Description）：多年生草本，高22.5-33厘米。茎疏生腺柔毛。叶均基生，具长柄；叶片肾形，长1.6-5.5厘米，宽1.9-6.5厘米，边缘具19-21阔卵形齿牙，并具腺睫毛，腹面被腺柔毛，背面无毛，具掌状达缘脉序；柄长4-10.7厘米，疏生腺柔毛。聚伞花序圆锥状，具多花（52-30花）；花序分枝和花梗均被腺毛；托杯长约0.6毫米，无毛；萼片在花期反曲，阔卵形至卵形，长0.7-1.3毫米，宽0.7-1毫米，无毛，单脉；花瓣白色或淡紫红色，卵形，长2.1-2.7毫米，宽1.6-1.8毫米，先端微凹，基部狭缩成长0.5-0.7毫米之爪，单脉；雄蕊长2-3毫米，花丝棒状；子房近上位，阔卵球形，花柱长0.2-0.5毫米。蒴果长2.8毫米，2果瓣上部叉开，基部合生。染色体2n=28（有时≈70，76）。花期7月，果期8月。
分布（Distribution）：产黑龙江、吉林等省。生于海拔1 660-2 300米的红松林下、林缘或石隙。朝鲜、蒙古、苏联及北美均有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 8 Page 281
Saxifraga nelsoniana D. Don, Trans. Linn. Soc. London, Bot. 13: 355. 1822.
斑点虎耳草 ban dian hu er cao | Saxifragaceae | Saxifraga
Micranthes aestivalis (Fischer & C. A. Meyer) Small; M. nelsoniana (D. Don) Small; Saxifraga aestivalis Fischer & C. A. Meyer; S. punctata Linnaeus subsp. nelsoniana (D. Don) Hultén; S. punctata var. nelsoniana (D. Don) Engler.
Stem 22-33 cm tall, glandular pilose. Petiole 4-10.7 cm, glandular pilose; leaf blade reniform, 1.6-5.5 × 1.9-6.5 cm, adaxially glandular pubescent, palmately veined, margin 19-21-dentate, glandular ciliate, teeth broadly ovate. Inflorescence paniculate, 5-15 cm, 30-52-flowered; branches and pedicels glandular hairy. Hypanthium ca. 0.6 mm, glabrous. Sepals reflexed, ovate to broadly so, 0.7-1.3 × 0.7-1 mm, glabrous, 1-veined. Petals white or lilac, ovate, 2.1-2.7 × 1.6-1.8 mm, 1-veined, base contracted into a claw 0.5-0.7 mm, apex retuse. Stamens 2-3 mm; filaments clavate. Carpels subsuperior to superior, united only at base, purple or green, conical, with a basal, annular nectary; styles erect or slightly spreading, 0.2-0.5 mm; follicles erect or slightly divergent, bottle-shaped, 5-6 mm. Fl. Jul, fr. Aug. 2n = 28, 30, 32, 40, ca. 60, 70, 76, 80, 84, ca. 88.
Pinus koraiensis forests, forest margins, rock crevices; 1700-2300 m. Heilongjiang, Jilin, Nei Mongol [Korea, Mongolia, Russia; North America].
The name Saxifraga punctata Linnaeus has become hopelessly confused in the literature and, following Webb (Repert. Spec. Nov. Regni Veg. 69: 153-154. 1964), the present authors have abandoned it as a nomen confusum. The type of S. punctata actually belongs to the species known widely as S. davurica Willdenow. The next available name for the species under consideration is S. nelsoniana.
（责任编辑：徐晔春）
学名（Scientific Name）：Saxifraga nelsoniana D. Don
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Micranthes nelsoniana (D. Don) Small Micranthes aestivalis (Fisch. et C. A. Mey.) Small Saxifraga punctata subsp. nelsoniana (D. Don) Hultén Saxifraga aestivalis Fisch. et C. A. Mey.
科属（Family & Genus）：虎耳草科（Saxifragaceae）虎耳草属
形态特征（Description）：多年生草本，高22.5-33厘米。茎疏生腺柔毛。叶均基生，具长柄；叶片肾形，长1.6-5.5厘米，宽1.9-6.5厘米，边缘具19-21阔卵形齿牙，并具腺睫毛，腹面被腺柔毛，背面无毛，具掌状达缘脉序；柄长4-10.7厘米，疏生腺柔毛。聚伞花序圆锥状，具多花（52-30花）；花序分枝和花梗均被腺毛；托杯长约0.6毫米，无毛；萼片在花期反曲，阔卵形至卵形，长0.7-1.3毫米，宽0.7-1毫米，无毛，单脉；花瓣白色或淡紫红色，卵形，长2.1-2.7毫米，宽1.6-1.8毫米，先端微凹，基部狭缩成长0.5-0.7毫米之爪，单脉；雄蕊长2-3毫米，花丝棒状；子房近上位，阔卵球形，花柱长0.2-0.5毫米。蒴果长2.8毫米，2果瓣上部叉开，基部合生。染色体2n=28（有时≈70，76）。花期7月，果期8月。
分布（Distribution）：产黑龙江、吉林等省。生于海拔1 660-2 300米的红松林下、林缘或石隙。朝鲜、蒙古、苏联及北美均有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 8 Page 281
Saxifraga nelsoniana D. Don, Trans. Linn. Soc. London, Bot. 13: 355. 1822.
斑点虎耳草 ban dian hu er cao | Saxifragaceae | Saxifraga
Micranthes aestivalis (Fischer & C. A. Meyer) Small; M. nelsoniana (D. Don) Small; Saxifraga aestivalis Fischer & C. A. Meyer; S. punctata Linnaeus subsp. nelsoniana (D. Don) Hultén; S. punctata var. nelsoniana (D. Don) Engler.
Stem 22-33 cm tall, glandular pilose. Petiole 4-10.7 cm, glandular pilose; leaf blade reniform, 1.6-5.5 × 1.9-6.5 cm, adaxially glandular pubescent, palmately veined, margin 19-21-dentate, glandular ciliate, teeth broadly ovate. Inflorescence paniculate, 5-15 cm, 30-52-flowered; branches and pedicels glandular hairy. Hypanthium ca. 0.6 mm, glabrous. Sepals reflexed, ovate to broadly so, 0.7-1.3 × 0.7-1 mm, glabrous, 1-veined. Petals white or lilac, ovate, 2.1-2.7 × 1.6-1.8 mm, 1-veined, base contracted into a claw 0.5-0.7 mm, apex retuse. Stamens 2-3 mm; filaments clavate. Carpels subsuperior to superior, united only at base, purple or green, conical, with a basal, annular nectary; styles erect or slightly spreading, 0.2-0.5 mm; follicles erect or slightly divergent, bottle-shaped, 5-6 mm. Fl. Jul, fr. Aug. 2n = 28, 30, 32, 40, ca. 60, 70, 76, 80, 84, ca. 88.
Pinus koraiensis forests, forest margins, rock crevices; 1700-2300 m. Heilongjiang, Jilin, Nei Mongol [Korea, Mongolia, Russia; North America].
The name Saxifraga punctata Linnaeus has become hopelessly confused in the literature and, following Webb (Repert. Spec. Nov. Regni Veg. 69: 153-154. 1964), the present authors have abandoned it as a nomen confusum. The type of S. punctata actually belongs to the species known widely as S. davurica Willdenow. The next available name for the species under consideration is S. nelsoniana.
（责任编辑：徐晔春）
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