Tapetum ( pl . tapeta ) a food - rich layer surrounding the spore mother cells in the anthers of vascular plants 绒毡层:维管植物花粉囊内包围孢子母细胞的富含营养物质的一层结构。
Secondary vascular tissue , found only in plants with secondary thickening , develops from the vascular cambium 次生维管组织由维管形成层发育而来,仅存在于有次生加厚的植物中。
They have thus been able to colonize the drier habitats that are inaccessible to the nonvascular bryophytes 因此,比起不具维管的苔藓类植物,维管植物可以在较干旱的陆地上栖居。
Angiosperms the flowering plants constituting by far the largest phylum ( anthophyta or angiospermophyta ) of vascular seed plants 被子植物:由显花植物组成的最大的一门维管种子植物。
There are 173 families , 878 genera , 2696 species of vascular plant in baotianman area in nanzhao county 摘要南召宝天曼地区含有丰富的野生植物资源,有维管植物173科, 878属, 2696种。
In temperate regions vascular epiphytes are rare : here most epiphytes are lichens , mosses , liverworts , and algae 温带几乎没有附生的维管植物,附生植物大多为地衣、藓类、苔类和藻类。
The arrangement of vascular tissue ( the vascular system ) in the stem is very varied , giving a number of different types of stele 茎中维管组织的排列方式多种多样,由此产生多种类型的中柱。
Vascular tissue transports water and nutrients through the plant and also provides strength and support 维管组织不仅可以在植物体内运输水分和营养物质而且为植物体提供支撑力,具有支持作用。
Intrafascicular cambium ( fascicular cambium ) the part of the vascular cambium within the vascular between the xylem and phloem 束中形成层:是位于木质部和韧皮部构成的维管束内的一部分维管形成层。
Non active surgical implants - particular requirements for cardiac and vascular implants - part 1 : heart valve substitutes 非活性外科植入物.心脏植入和维管植入物的特殊要求.第1部分:心脏瓣膜代替物