net isomorphism

Acropetal differentiation of the cambium layer continues as the primary root elongates.

形成层的向顶分化像初生根伸长一样在继续进行。

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The process of decorticated seeds germination and haustorium formation is as follws: sprouting protuberance ( tapered shape) formation of germ tube ( slightness) germ tube growing widely intumescence in proximal end attenuation in acropetal end.

去种皮种子的种子萌发和初生吸器形成为露白突起（圆锥状）芽管（细长）芽管增粗基部膨大顶端变细的过程。核型胚乳，胚乳发育中后期胚囊合点端存在胚乳吸器；

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In the early december, the first bract primordium was formed in the axil scale at the cone base, then bract initiation had occurred in acropetal direction.

12月初，最初的苞片原基在雌球果原基的鳞片的叶腋处产生，之后其由基部向顶部连续发生。

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