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In Pteridaceae s. l., false veins can be found in Pteris, Adiantum, and vittarioids; in this thesis, Energy Dispersive X-ray element analysis and histochemical studies were used to confirm the false veins of these three taxa are composed of spicular cells – a kind of long, silica depositing epidermal idioblast.
於广义的凤尾蕨科中,假脉可见於凤尾蕨属、铁线蕨属以及书带蕨类群;本论文利用能量色散X光光谱仪元素分析,配合组织化学染色的结果,证实此三类群的假脉均是由具二氧化矽堆积的矽异形细胞(spicular cell, SC)所构成。
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The results of character evolution history reconstruction shows the SC in PT and AD clade might be a homoplasy character; also, the SC in PT clade might have multiple origins. SC in Pteridaceae has some special characteristics:(1) the cell long axes usually run parallel to the lateral veins;(2) Most of Pteris and Adianum species have VSC only in lower epidermis;(3) Species have ISC also have VSC.(4) Presence of spicular cells is highly correlated with the long veinal epidermal cells. Species have type III silica deposition type usually have longer and narrower veinal epidermal cell compared with ordinary epidermal cells; Species have type IV silica deposition type also have long epidermal cells, but not significantly different from ordinary epidermal cells.
本实验中亦发现凤尾蕨科之矽异形细胞具有几项特色:(1)矽异形细胞之长轴多与叶片侧脉方向平行(2)发现多数铁线蕨属以及凤尾蕨属植物仅下表皮具有脉上矽异形细胞;(3)具有脉间矽异形细胞的种类会同时具有脉上矽异形细胞;(4)长条形的侧脉上表皮细胞与矽异形细胞具有相关性,仅具脉上矽异形细胞的分类群之脉上表皮细胞均较一般表皮细胞细长;具有脉间矽异形细胞之物种之脉上表皮细胞亦为长条形但形态与一般表皮细胞常无明显形态差异。
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Cosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae.
一个分布在世界各地的蕨类植物属;掌叶铁线蕨或铁线蕨;在一些分类系统种归入水龙骨科或铁线蕨科。
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Drought brake is belonged to and broken rice brake are belonged to also belongs to subfamily of iron line brake, grow on much petrosal cliff commonly or on cay.
旱蕨属和碎米蕨属亦属铁线蕨亚科,一般生长在多岩石的悬崖上或岩礁上。
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Genus of chiefly small rock-loving ferns; in some classifican systems placed in family Polypodiaceae or Adiantaceae.
一个主要生长在岩石上的小的蕨类植物属;在一些分类系统中归于水龙骨科或铁线蕨科。
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Adiantum:铁线蕨属
我们通常所说的蕨类植物在植物学上为蕨类植物门(Pteridophto)植物. 蕨类植物种类丰富,形态各异,生态习性差异大,为室内观赏及园林应用提供了丰富的材料. 尤其是肾蕨属(Nephrolepis)、铁线蕨属(Adiantum)、鸟巢蕨属(Asplenium)等,现已培育出很多的人工品种,作为室内观赏盆栽,耐阴性强,观赏价值颇高.
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Adiantum:石长生属植物, 铁线蕨
slewing distortion 转换失真 | adiantum 石长生属植物, 铁线蕨 | rallye 长距离赛车
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Adiantum L:铁线蕨属
铁线蕨科 Adiantaceae | 铁线蕨属 Adiantum L. | 铁线蕨 A.capillus-veneris L.
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Schizoloma Gaud:双唇蕨属
林蕨科 Lindsaeaceae | 双唇蕨属 Schizoloma Gaud | 铁线蕨科 Adiantaceae
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adiagnostic:难辨认结构的 不可判明的
adiadochokinesis | 轮替运动不能 | adiagnostic | 难辨认结构的 不可判明的 | adiantum | 石长生属植物, 铁线蕨
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Nephrolepis:肾蕨属
我们通常所说的蕨类植物在植物学上为蕨类植物门(Pteridophto)植物. 蕨类植物种类丰富,形态各异,生态习性差异大,为室内观赏及园林应用提供了丰富的材料. 尤其是肾蕨属(Nephrolepis)、铁线蕨属(Adiantum)、鸟巢蕨属(Asplenium)等,现已培育出很多的人工品种,作为室内观赏盆栽,耐阴性强,观赏价值颇高.
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slewing distortion:转换失真
dollishness 玩偶似, 好看而没有头脑 | slewing distortion 转换失真 | adiantum 石长生属植物, 铁线蕨