angiosperm

Nevertheless, its spermatophyte flora was little similar to that of Tertiary, where angiosperm were booming in that period.

由此可见，桫椤群落区系组成与起源年代都十分古老；

chalazogamy A method of fertilization in angiosperms in which the pollen tube enters the ovule by the chalaza instead of through the micropyle, penetrating the placenta en route.

点受精：被子植的一种受精方式，花粉管是通过点部分而不是通过珠孔进入胚珠的。

Heteranthery exists in several angiosperm families, such as Melastomataceae, Solanaceae, Lythraceae, Leguminosae and Pontederiaceae, but the aspects and extent of differentiation often vary in taxa.

异型雄蕊在科、茄科、干屈菜科、豆科、雨久花科等多个科中都有分布,但其分化与程度常随类群而异。

Heteranthery exists in several angiosperm families, such as Melastomataceae, Solanaceae, Lytbraceae, Leguminosae and Pontederiaceae, but the aspects and extent of differentiation often vary in taxa.

异型雄蕊在科、茄科、千屈菜科、豆科、雨久花科等多个科中都有分布，但其分化与程度常随类群而异。

In roots, however, the concept is still applied, and in some angiosperm roots a fourth histogen zone is recognized, the calpytrogen, which gives rise to the root cap.

然而在根中，它还是适用的。在一些被子植的根中，还发现了第四种组织原，即calpytrogen，与根冠发生有关。