Exodermis An outermost layer of thickened or suberized cortical cells that sometimes replaces the epidermal layer in the older parts of roots if the epidermal cells have died.

薄或木化皮层最外层。如果根较老部分表皮死亡，它通常取而代之。

The silica-phellem block and stomate tubercle on 3rd leaf are underdeveloped, the tubercle of stomate block is small and dense in japonica, big and sparse in O.

发现了三叶期第三叶片硅化-木带和气孔器乳突发育不完全现象。

Fresh soap its components, trace alkaloids, inulin and plant-rich alcohol, as well as chamber and dandelion friedelin diterpene resin acids and other acids have been.

其成份食皂、微量生物碱、菊及植物富醇，还有木硐及蒲公英萜酸已酸脂等。

Objective: To study the shape and micro-character of euonymus alatus with phellem wing as drug,it supplied the bases for identifying the euonymus alatus.

对以木翅入箭羽形态和显微特征进行研究,为箭羽鉴别提供依据。

Main macerals of hydrocarbon generation are sporinite, cutinite, alginite, bituminite, liptodetrinite and desmocollnite in source rocks from Jurassic coal measure in Northwest China.

西北地区侏罗纪煤系地层中主要生烃显微组分是孢子体、角质体、藻类体、沥青质体、碎屑类脂体、基质镜质体等，而树脂体、木质体等早期低熟生油组分含量很低。

Bark The outermost tissue of the stem and roots in woody plants, on the outside of the phellogen (cork cambium).

木本植物中茎或根中木形成层外方全部组织，称为树皮。

ResultsAtractylodes macrocephala Koidz.transection structure fiber synanthrin,crystalline calcium oxalate,cork cell and stone cell can be regarded as identification character.

结果白术根茎横切面结构、纤维、菊、草酸钙针晶、木、石均可作为其鉴别特征。