银钩花Mitrephora tomentosa
中文名（Chinese Name）：银钩花
学名（Scientific Name）： Mitrephora tomentosa Hook. f. & Thomson
英文名（English Common Name）：
别名（Chinese Common Name）：定春
异名（Synonym）：Mitrephora edwardsii Pierre Mitrephora bousigoniana Pierre Mitrephora collinsae Craib Kinginda thorelii (Pierre) Kuntze Kinginda tomentosa (Hook. f. & Thomson) Kuntze Mitrephora vandaeflora Kurz Mitrephora thorelii var. microphylla Finet & Gagnep. Mitrephora thorelii var. bousigoniana (Pierre) Finet & Gagnep.
科属（Family & Genus）：番荔枝科Annonaceae银钩花属Mitrephora
形态特征（Description）：乔木，高达25米，胸径达50厘米；树皮灰黑色至深灰黑色，韧皮部淡赭色，略有香甜气味；小枝密被锈色绒毛，老渐无毛，灰黑色。叶近革质，卵形或长圆状椭圆形，长达15厘米，宽7-10.5厘米，顶端短渐尖，基部圆形，叶面除中脉外无毛，有光泽，叶背被锈色长柔毛，沿中脉上更密；中脉上面凹下，下面凸起，被锈色长柔毛，侧脉每边8-14条，上面凹陷，下面凸起，网脉扁平；叶柄粗壮，长约7毫米，密被锈色绒毛。花淡黄色，直径1-1.5厘米，单生或数朵组成总状花序，腋生或与叶对生；总花梗、花梗、萼片、花瓣均密被锈色柔毛；总花梗短，有脱落的小苞片痕迹；花蕾圆球状；萼片卵状三角形，长约3毫米，内面无毛；外轮花瓣卵形，长约为萼片的3倍，内外面均被柔毛，内轮花瓣菱形，下部渐狭成爪，两面均被柔毛，边缘粘合成一帽状体；雄蕊楔形，药隔盘状；心皮被毛，花柱圆柱状，每心皮有胚珠8-10颗，2排。果卵状或近圆球状，成熟时有环纹，长1.6-2厘米，直径1.4-1.6厘米，密被褐色绒毛；果柄细长，长于果的2-3倍，密被褐色绒毛。花期3-4月，果期5-8月。
分布（Distribution）：产于广东（海南）和云南南部。生于山地密林中。越南、老挝、柬埔寨、泰国等地也有。
用途（Use）：木材坚硬，适于作车辆和建筑用材。
引自中国植物志英文版：FOC Vol. 19 Page 688
Mitrephora tomentosa J. D. Hooker & Thomson, Fl. Ind. 1: 113. 1855.
银钩花 yin gou hua | Annonaceae | Mitrephora
Kinginda thorelii (Pierre) Kuntze; K. tomentosa (J. D. Hooker & Thomson) Kuntze; Mitrephora bousigoniana Pierre; M. collinsae Craib; M. edwardsii Pierre; M. thorelii Pierre; M. thorelii var. bousigoniana (Pierre) Finet & Gagnepain; M. thorelii var. microphylla Finet & Gagnepain; ?M. vandiflora Kurz.
Trees to 20 m tall. Branches densely hairy when young. Petiole 4-12.5 mm, densely hairy; leaf blade ovate, lanceolate, or rarely oblong, 6.5-21.5 × 3-10 cm, leathery, abaxially densely hairy, adaxially glabrous, secondary veins (8-)14-20 on each side of midvein, base rounded to slightly cordate, apex acute to shortly acuminate. Inflorescence rachides unbranched, internodes short. Pedicel 1.1-2.3 cm; bracteoles 4.5-7.5 × 3.5-9 mm. Sepals ovate, 5-9 × 5-9 mm. Outer petals pale yellow turning dark yellow, lanceolate to oblanceolate, 1.6-2(-3.4) × 0.7-1.8 cm, margin undulate on older flowers; inner petals cream to yellow with apical purple streaks, 0.8-1.7 × 0.7-1.3 cm. Stamens 1-1.3 mm. Carpels 12-17, 1.5-1.7 mm; ovules 10-12 per carpel. Fruiting pedicel 1.5-3.4 cm; monocarp stipes 1.6-3(-3.9) cm; monocarps subglobose, 1.2-2.3 × 0.8-2 cm, densely hairy, smooth, without longitudinal ridge. Seeds ca. 12 × 8 mm. Fl. Jan-Apr, fr. May-Sep.
Wet and dry evergreen broad-leaved forests; below 100-1200 m. W Guangxi, S Guizhou, Hainan, S Yunnan [Cambodia, India (Assam), Laos, Thailand, Vietnam].
The wood of Mitrephora tomentosa is used for building carts and as structural timbers. The bark is a source of saponins and is used as a soap.
（责任编辑：徐晔春）
学名（Scientific Name）： Mitrephora tomentosa Hook. f. & Thomson
英文名（English Common Name）：
别名（Chinese Common Name）：定春
异名（Synonym）：Mitrephora edwardsii Pierre Mitrephora bousigoniana Pierre Mitrephora collinsae Craib Kinginda thorelii (Pierre) Kuntze Kinginda tomentosa (Hook. f. & Thomson) Kuntze Mitrephora vandaeflora Kurz Mitrephora thorelii var. microphylla Finet & Gagnep. Mitrephora thorelii var. bousigoniana (Pierre) Finet & Gagnep.
科属（Family & Genus）：番荔枝科Annonaceae银钩花属Mitrephora
形态特征（Description）：乔木，高达25米，胸径达50厘米；树皮灰黑色至深灰黑色，韧皮部淡赭色，略有香甜气味；小枝密被锈色绒毛，老渐无毛，灰黑色。叶近革质，卵形或长圆状椭圆形，长达15厘米，宽7-10.5厘米，顶端短渐尖，基部圆形，叶面除中脉外无毛，有光泽，叶背被锈色长柔毛，沿中脉上更密；中脉上面凹下，下面凸起，被锈色长柔毛，侧脉每边8-14条，上面凹陷，下面凸起，网脉扁平；叶柄粗壮，长约7毫米，密被锈色绒毛。花淡黄色，直径1-1.5厘米，单生或数朵组成总状花序，腋生或与叶对生；总花梗、花梗、萼片、花瓣均密被锈色柔毛；总花梗短，有脱落的小苞片痕迹；花蕾圆球状；萼片卵状三角形，长约3毫米，内面无毛；外轮花瓣卵形，长约为萼片的3倍，内外面均被柔毛，内轮花瓣菱形，下部渐狭成爪，两面均被柔毛，边缘粘合成一帽状体；雄蕊楔形，药隔盘状；心皮被毛，花柱圆柱状，每心皮有胚珠8-10颗，2排。果卵状或近圆球状，成熟时有环纹，长1.6-2厘米，直径1.4-1.6厘米，密被褐色绒毛；果柄细长，长于果的2-3倍，密被褐色绒毛。花期3-4月，果期5-8月。
分布（Distribution）：产于广东（海南）和云南南部。生于山地密林中。越南、老挝、柬埔寨、泰国等地也有。
用途（Use）：木材坚硬，适于作车辆和建筑用材。
引自中国植物志英文版：FOC Vol. 19 Page 688
Mitrephora tomentosa J. D. Hooker & Thomson, Fl. Ind. 1: 113. 1855.
银钩花 yin gou hua | Annonaceae | Mitrephora
Kinginda thorelii (Pierre) Kuntze; K. tomentosa (J. D. Hooker & Thomson) Kuntze; Mitrephora bousigoniana Pierre; M. collinsae Craib; M. edwardsii Pierre; M. thorelii Pierre; M. thorelii var. bousigoniana (Pierre) Finet & Gagnepain; M. thorelii var. microphylla Finet & Gagnepain; ?M. vandiflora Kurz.
Trees to 20 m tall. Branches densely hairy when young. Petiole 4-12.5 mm, densely hairy; leaf blade ovate, lanceolate, or rarely oblong, 6.5-21.5 × 3-10 cm, leathery, abaxially densely hairy, adaxially glabrous, secondary veins (8-)14-20 on each side of midvein, base rounded to slightly cordate, apex acute to shortly acuminate. Inflorescence rachides unbranched, internodes short. Pedicel 1.1-2.3 cm; bracteoles 4.5-7.5 × 3.5-9 mm. Sepals ovate, 5-9 × 5-9 mm. Outer petals pale yellow turning dark yellow, lanceolate to oblanceolate, 1.6-2(-3.4) × 0.7-1.8 cm, margin undulate on older flowers; inner petals cream to yellow with apical purple streaks, 0.8-1.7 × 0.7-1.3 cm. Stamens 1-1.3 mm. Carpels 12-17, 1.5-1.7 mm; ovules 10-12 per carpel. Fruiting pedicel 1.5-3.4 cm; monocarp stipes 1.6-3(-3.9) cm; monocarps subglobose, 1.2-2.3 × 0.8-2 cm, densely hairy, smooth, without longitudinal ridge. Seeds ca. 12 × 8 mm. Fl. Jan-Apr, fr. May-Sep.
Wet and dry evergreen broad-leaved forests; below 100-1200 m. W Guangxi, S Guizhou, Hainan, S Yunnan [Cambodia, India (Assam), Laos, Thailand, Vietnam].
The wood of Mitrephora tomentosa is used for building carts and as structural timbers. The bark is a source of saponins and is used as a soap.
（责任编辑：徐晔春）
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