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Sometimes armed with stinging hairs; epidermal cells of leaves, sometimes stems, perianths mostly with prominent cystoliths punctiform to linear; Leaves alternate or opposite, stipules present, rarely absent; leaf blade simple. Inflorescences cymose, paniculate, racemose, spicate, or cluster-capitate, usually formed from glomerules, sometimes crowded on common enlarged cuplike or discoid receptacle, rarely reduced into a single flower. Flowers unisexual, rarely bisexual in partial flowers; actinomorphic, very small,(1-)4- or 5-merous, rarely perianth absent in female flowers.
有时具有蛰毛的刺;叶的表皮细胞,有时茎和花被的表皮细胞大部分有显著的点状或线形的乳状体;叶互生或者对生,托叶有,很少无;单叶花序聚伞状,圆锥状,总状,穗状,或者丛生头状花序,花单性,部分花两性;辐射对称,小,(1-)4-或者5瓣,很少在雌花内无花被。
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It is the soil mass maintained by the umbrella-shaped root system of trees during the geological history,and it is formed by the interactive compression of tree load and growth of main root system and by the differential compaction of surrounding soil mass;in other words,it also is a kind of the sedimentary textite or sedimentary structure formed under the influences of biological process.
它是地质历史中,树木伞状根系所维系的土体,在树木的自重荷载和主干根系生长的相互挤压作用下与外围土体的差异压实造成的;换言之,它又是一种在生物作用影响下形成的沉积结构体或沉积构造。
- 更多网络解释与伞状体相关的网络解释 [注:此内容来源于网络,仅供参考]
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parachute disseminule:伞传播体
parachute deformity of mitral valve 二尖瓣降落伞状畸形 | parachute disseminule 伞传播体 | parachute distress signal 降落伞信号
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sporophore:子实体
很多高等真菌在生殖时期形成有一定形状和结构、能产生孢子的菌丝体,叫做子实体(sporophore),如蘑菇的子实体伞状,马勃的子实体近球形. 容纳子实体的菌丝褥座状结构,叫做子座(stroma). 子座是真菌从营养阶段到繁殖阶段的一种过渡形式,
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Cotingidae:伞鸟科
雀形目(Passeriformes)伞鸟科(Cotingidae)3种鸟的统称,分布于美洲热带林中,有独特的伞状冠,又自喉垂下一个可膨胀的肉垂. 雄鸟炫耀时展开羽冠把头遮起,同时发出隆隆的喧闹声. 体黑色,长3850公分(1520吋). 一生的大部分时间在高树的冠上度过.
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fruiting body:子实体
菇类菌丝体深层培养在食品工业上之应用一,前言 长久以来,人们对菇类(mushroom)的第一印象,多半在其形状突出而且色彩丰富的伞状构造,即所谓之子实体(fruiting body).从野地采撷,到人工驯化栽培,以至大量商业化生产,