水石榕Elaeocarpus hainanensis
中文名（Chinese Name）：水石榕
学名（Scientific Name）：Elaeocarpus hainanensis Oliver
英文名（English Common Name）：
别名（Chinese Common Name）：海南胆八树、水柳树
异名（Synonym）：Elaeocarpus lacei Craib
科属（Family & Genus）：杜英科（Elaeocarpaceae）杜英属
形态特征（Description）：小乔木，具假单轴分枝，树冠宽广；嫩枝无毛。叶革质，狭窄倒披针形，长7-15厘米，宽1.5-3厘米，先端尖，基部楔形，幼时上下两面均秃净，老叶上面深绿色，干后发亮，下面浅绿色，侧脉14-16对，在上面明显，在下面突起，网脉在下面稍突起，边缘密生小钝齿；叶柄长1-2厘米。总状花序生当年枝的叶腋内，长5-7厘米，有花2-6朵；花较大，直径3-4厘米；苞片叶状，无柄，卵形，长1厘米，宽7-8毫米，两面有微毛，边缘有齿突，基部圆形或耳形，有网状脉及侧脉，宿存；花柄长约4厘米，有微毛；萼片5片，披针形，长约2厘米，被柔毛；花瓣白色，与萼片等长，倒卵形，外侧有柔毛，先端撕裂，裂片30条，长4-6毫米；雄蕊多数，约和花瓣等长，有微毛，药隔突出成芒刺状，长4毫米；花盘多裂而连续，围着子房基部；子房2室，无毛，花柱长1厘米，有毛；胚珠每室2颗。核果纺锤形，两端尖，长约4厘米，中央宽1-1.2厘米；内果皮坚骨质，表面有浅沟，腹缝线2条，厚1.5毫米，1室；种子长2厘米。花期6-7月。
分布（Distribution）：产海南、广西及云南。喜生于低湿处及山谷水边。越南、泰国也有。
用途（Use）：
引自中国植物志英文版FOC Vol. 12 Page 223, 225
Elaeocarpus hainanensis Oliver, Hooker’s Icon. Pl. 25: sub t. 2462. 1896.
水石榕 shui shi rong | Elaeocarpaceae | Elaeocarpus
Shrubs or small trees, to 5 m tall. Branchlets glabrous or nearly so. Leaves clustered at twig apices; petiole 1-2 cm; leaf blade narrowly lanceolate, oblanceolate, or narrowly oblong, (4-)7-15(-18) × 1.5-3(-3.5) cm, papery, abaxially pubescent, adaxially glabrous or slightly pubescent on midvein only, lateral veins 14-30 per side, prominent on both surfaces, veinlets slightly prominent adaxially, base cuneate and tapered toward end, decurrent, margin denticulate, apex acuminate. Racemes in axils of current leaves, 5-8 cm, 2-6-flowered in upper part; peduncles puberulent, glabrescent. Pedicel 2-5 cm, puberulent; bracts sessile, persistent, leaflike, ovate or elliptic, 1-1.6 × 0.7-1 cm, veins and veinlets conspicuous, margin dentate, base rounded or auriculate. Flowers 3-4 cm in diam. Calyx lobes 5, lanceolate, 1.2-2 cm, abaxially puberulent, pubescent on midvein and upper 1/2 only. Petals 5, white, ca. as long as sepals, obovate, ciliate along margin, abaxially densely rust-colored yellow tomentose at base, adaxially tomentose, apex laciniate; lobes 30-46, 4-6 mm. Stamens 63-75, ca. as long as petals, puberulent; anthers with awn ca. 4 mm. Disk multi-lobed, tomentose. Ovary 2-loculed, glabrous or nearly so; ovules 2 per locule; style ca. 1 cm, pubescent in lower 1/2. Drupe spindle-shaped, 4-5 cm, ca. 1.2 cm in diam., both ends acuminate; endocarp hard, lacunose, 1-loculed. Seeds ca. 2 cm. Fl. Jun-Jul, fr. Jul-Sep.
Moist places, streamsides; 200-500 m. Guangdong, S Guangxi, Hainan, SE Yunnan [Myanmar, Thailand, Vietnam].
（责任编辑：徐晔春）
学名（Scientific Name）：Elaeocarpus hainanensis Oliver
英文名（English Common Name）：
别名（Chinese Common Name）：海南胆八树、水柳树
异名（Synonym）：Elaeocarpus lacei Craib
科属（Family & Genus）：杜英科（Elaeocarpaceae）杜英属
形态特征（Description）：小乔木，具假单轴分枝，树冠宽广；嫩枝无毛。叶革质，狭窄倒披针形，长7-15厘米，宽1.5-3厘米，先端尖，基部楔形，幼时上下两面均秃净，老叶上面深绿色，干后发亮，下面浅绿色，侧脉14-16对，在上面明显，在下面突起，网脉在下面稍突起，边缘密生小钝齿；叶柄长1-2厘米。总状花序生当年枝的叶腋内，长5-7厘米，有花2-6朵；花较大，直径3-4厘米；苞片叶状，无柄，卵形，长1厘米，宽7-8毫米，两面有微毛，边缘有齿突，基部圆形或耳形，有网状脉及侧脉，宿存；花柄长约4厘米，有微毛；萼片5片，披针形，长约2厘米，被柔毛；花瓣白色，与萼片等长，倒卵形，外侧有柔毛，先端撕裂，裂片30条，长4-6毫米；雄蕊多数，约和花瓣等长，有微毛，药隔突出成芒刺状，长4毫米；花盘多裂而连续，围着子房基部；子房2室，无毛，花柱长1厘米，有毛；胚珠每室2颗。核果纺锤形，两端尖，长约4厘米，中央宽1-1.2厘米；内果皮坚骨质，表面有浅沟，腹缝线2条，厚1.5毫米，1室；种子长2厘米。花期6-7月。
分布（Distribution）：产海南、广西及云南。喜生于低湿处及山谷水边。越南、泰国也有。
用途（Use）：
引自中国植物志英文版FOC Vol. 12 Page 223, 225
Elaeocarpus hainanensis Oliver, Hooker’s Icon. Pl. 25: sub t. 2462. 1896.
水石榕 shui shi rong | Elaeocarpaceae | Elaeocarpus
Shrubs or small trees, to 5 m tall. Branchlets glabrous or nearly so. Leaves clustered at twig apices; petiole 1-2 cm; leaf blade narrowly lanceolate, oblanceolate, or narrowly oblong, (4-)7-15(-18) × 1.5-3(-3.5) cm, papery, abaxially pubescent, adaxially glabrous or slightly pubescent on midvein only, lateral veins 14-30 per side, prominent on both surfaces, veinlets slightly prominent adaxially, base cuneate and tapered toward end, decurrent, margin denticulate, apex acuminate. Racemes in axils of current leaves, 5-8 cm, 2-6-flowered in upper part; peduncles puberulent, glabrescent. Pedicel 2-5 cm, puberulent; bracts sessile, persistent, leaflike, ovate or elliptic, 1-1.6 × 0.7-1 cm, veins and veinlets conspicuous, margin dentate, base rounded or auriculate. Flowers 3-4 cm in diam. Calyx lobes 5, lanceolate, 1.2-2 cm, abaxially puberulent, pubescent on midvein and upper 1/2 only. Petals 5, white, ca. as long as sepals, obovate, ciliate along margin, abaxially densely rust-colored yellow tomentose at base, adaxially tomentose, apex laciniate; lobes 30-46, 4-6 mm. Stamens 63-75, ca. as long as petals, puberulent; anthers with awn ca. 4 mm. Disk multi-lobed, tomentose. Ovary 2-loculed, glabrous or nearly so; ovules 2 per locule; style ca. 1 cm, pubescent in lower 1/2. Drupe spindle-shaped, 4-5 cm, ca. 1.2 cm in diam., both ends acuminate; endocarp hard, lacunose, 1-loculed. Seeds ca. 2 cm. Fl. Jun-Jul, fr. Jul-Sep.
Moist places, streamsides; 200-500 m. Guangdong, S Guangxi, Hainan, SE Yunnan [Myanmar, Thailand, Vietnam].
（责任编辑：徐晔春）
踩一下[0]
顶一下[6]