山杜英Elaeocarpus sylvestris

中文名(Chinese Name):山杜英
学名(Scientific Name):Elaeocarpus sylvestris (Lour.) Poir.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Adenodus sylvestris Lour.  Elaeocarpus henryi Hance  Elaeocarpus kwangtungensis Hu  Elaeocarpus omeiensis Rehder et E. H. Wilson  Elaeocarpus makinoi Kaneh.  Elaeocarpus pachycarpus Koidz.  Elaeocarpus sylvestris var. ellipticus (Thunb.) H.Hara  Elaeocarpus sylvestris var. pachycarpus (Koidz.) H.Ohba  Elaeocarpus zollingeri K.Koch
科属(Family & Genus):杜英科(Elaeocarpaceae)杜英属
形态特征(Description):小乔木,高约10米;小枝纤细,通常秃净无毛;老枝干后暗褐色。叶纸质,倒卵形或倒披针形,长4-8厘米,宽2-4厘米,幼态叶长达15厘米,宽达6厘米,上下两面均无毛,干后黑褐色,不发亮,先端钝,或略尖,基部窄楔形,下延,侧脉5-6对。在上面隐约可见,在下面稍突起,网脉不大明显,边缘有钝锯齿或波状钝齿;叶柄长1-1.5厘米,无毛。总状花序生于枝顶叶腋内,长4-6厘米,花序轴纤细,无毛,有时被灰白色短柔毛;花柄长3-4毫米,纤细,通常秃净;萼片5片,披针形,长4毫米,无毛;花瓣倒卵形,上半部撕裂,裂片10-12条,外侧基部有毛;雄蕊13-15枚,长约3毫米,花药有微毛,顶端无毛丛,亦缺附属物;花盘5裂,圆球形,完全分开,被白色毛;子房被毛,2-3室,花柱长2毫米。核果细小,椭圆形,长1-1.2厘米,内果皮薄骨质,有腹缝沟3条。花期4-5月。
分布(Distribution):产于广东、海南、广西、福建、浙江,江西、湖南、贵州、四川及云南。生于海拔350-2000米的常绿林里。越南、老挝、泰国有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 12 Page 224, 225, 228
Elaeocarpus sylvestris (Loureiro) Poiret in Lamarck, Encycl., Suppl. 2: 704. 1811.
山杜英 shan du ying| Elaeocarpaceae  | Elaeocarpus
Adenodus sylvestris Loureiro, Fl. Cochinch. 1: 294. 1790; Elaeocarpus henryi Hance; E. kwangtungensis Hu; E. omeiensis Rehder & E. H. Wilson.
Trees to 15 m tall. Branchlets slender, sparsely pale pilose. Petiole 1-1.5 cm, sparsely pubescent at first, glabrescent; leaf blade black-brown when dry, obovate or oblanceolate, 4-12 × 2-7 cm, papery, both surfaces glabrous, lateral veins usually 4 or 5 per side, prominent abaxially, inconspicuous adaxially, veinlets sparse, conspicuous adaxially, base narrowly cuneate, decurrent, margin crenate or sinuately crenate, apex obtuse or shortly acuminate. Racemes in axils of fallen and current leaves, 4-6 cm; peduncles slender, glabrous, rarely gray-white pubescent. Pedicel 3-5 mm, slender, usually glabrous. Flowers bisexual. Sepals 5, lanceolate, ca. 4 mm, both surfaces sparsely pubescent. Petals 5, obovate, laciniate in upper 1/2; segments 10-12, abaxially pubescent at base. Stamens 15, ca. 3 mm; anthers not awned at apices, puberulent. Disk 5-lobed, globose, completely separate, white pubescent. Ovary pubescent, 2- or 3-loculed; style ca. 2 mm, pubescent in lower 1/2. Drupe ellipsoid, 1-1.2 × ca. 0.7 cm; endocarp thinly bony, with 3 ventral sutures. Fl. Apr-May, fr. May-Aug.
Evergreen forests; 300-2000 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang [Vietnam].

山杜英Elaeocarpus sylvestris

山杜英Elaeocarpus sylvestris

山杜英Elaeocarpus sylvestris
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