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海南蕈树Altingia obovata

时间:2013-09-23 13:16来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):海南蕈树 学名( Scientific Name ): Altingia obovata Merr. et Chun 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 金缕梅科(Hamamelidaceae)蕈树属
中文名(Chinese Name):海南蕈树
学名(Scientific Name):Altingia obovata Merr. et Chun
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):金缕梅科(Hamamelidaceae)蕈树属
形态特征(Description):常绿乔木,高达30米,树干直径达1米;树皮粗糙;嫩枝,芽体卵圆,长约1厘米,略有短柔毛,外侧有多数鳞状苞片。叶革质,倒卵形或长倒卵形,长5-11厘米,宽2-4.5厘米;先端圆形或钝,基部窄楔形;上面干后橄榄绿色,有光泽,下面无毛;侧脉7-9对,在上面很明显,在下面突起;网脉在上下两面均明显;边缘有小钝齿;叶柄长4-10毫米;托叶细小,早落。雄花短穗状花序椭圆形,常多个排成总状花序,苞片卵形,有褐色柔毛;雄蕊多数,花丝极短,近于无柄,花药倒卵圆形,长1.5毫米,红色。雌花头状花序通常单生,有花16-28朵;萼齿不明显,常为鳞片状;花柱长3毫米,有毛,先端弯曲;花序柄长约3厘米。头状果序近于圆球形,直径2厘米,基底平截,无宿存花柱。种子多数,细小,多角形,褐色,种皮坚硬。
分布(Distribution):广东海南岛特有。分布于海南岛中部及南部,海拔800-1400米的山地常绿林
引自中国植物志英文版FOC Vol. 9 Page 21
Altingia obovata Merrill & Chun, Sunyatsenia. 2: 238. 1935.
海南蕈树 hai nan tan shu| Hamamelidaceae  | Altingia
Trees ca. 30 m tall, trunk to ca. 100 cm in diam.; bark scabrous; young branches sparsely pubescent; buds ovoid, ca. 1 cm, sparsely pubescent. Stipules caducous; petiole 0.4–1 cm; leaf blade obovate or narrowly so, 5–11 × 2–4.5 cm, abaxially glabrous, base narrowly cuneate, margin crenate-serrulate, apex rounded or obtuse; lateral veins 7–9 on each side, prominent on both surfaces. Male inflorescences ellipsoid, usually many arranged in raceme; bracts ovate, brown-pubescent. Female inflorescence usually solitary in leaf axil, 16–28-flowered; peduncle ca. 3 cm. Male flowers: stamen filaments very short; anthers red, obovoid, ca. 1.5 mm. Female flowers: staminodes usually scalelike; styles ca. 3 mm, pubescent, apex recurved. Infructescences subglobose, ca. 2 cm wide, base truncate. Seeds brown, irregularly angular. Fl. Mar–Jun, fr. Jul–Sep.
Montane evergreen forests; 800--1400 m. Hainan.


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