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tapetum n.(pl. -peta )1.【解剖學;動物學】毯〔尤...

tapeworm

Their differences are based on many aspects which include characteristics of morphology , anatomy and epidermis of leaf , types of tapetum in anther walls , patterns of endothecial thickenings , and ways of development of endosperms , presence or absence of perisperm , components of photochemistry , and sequences of rbcl 菖蒲屬與天南星科其它屬在葉的形態、結構、表面特征,花藥絨氈層類型,藥室內壁增厚的特點,胚乳的發育方式,外胚乳的有無,植物化學成分, rbcl基因序列等多方面存在著顯著的差異。

The anther possesses four microsparangia with its wall composed of four layers : epidermis , endothecium , middle layers and a 2 - nucleate celled tapetum . most of the antheral tapetum are in situ 單穗升麻的花藥具4個小孢子囊藥室,囊壁花藥壁由表皮藥室內壁中層和絨氈層組成。

Tapetum ( pl . tapeta ) a food - rich layer surrounding the spore mother cells in the anthers of vascular plants 絨氈層:維管植物花粉囊內包圍孢子母細胞的富含營養物質的一層結構。

The anther is made up of an outer epidermis , a middle fibrous layer , and an inner nutritive layer , the tapetum 花藥壁由外表皮層,中間纖維層,內部營養層和絨氈層構成。