archesporium

Hypodermal archesporium is 2 or 3 cells; a single cell well developed into megaspore mother cell. Undergoes meiotic divisions, produces a linear tetrad.

大孢子孢原细胞2~3个，其中1个发育为大孢子母细胞，大孢子母细胞减数分裂形成直线四分体，合点端的大孢子为功能大孢子，珠孔端3个大孢子退化。

The polarity in the mature egg is prominent ( 4) Microspore archesporium is of multicellular, the anther wall conforms to basic type, and the tapetum is glandular.

小孢子孢原为多细胞，药壁为基本型，具腺质绒毡层；

Megasporogenesis and Female Gametogenesis: Archesporium is of one cell, it directly functions as macrospore mother cell.

大孢子和雌配子体发生：孢原为一个细胞，它直接起大孢子母细胞功能。

The archesporium in its pistils directly developed into megaspore mother cells, which later divided into macrospores through meiosis.

孢原细胞直接发育成大孢子母细胞，然后大孢子母细胞减数分裂形成大孢子。

A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.

孢原细胞处于珠心表皮之下, 直接起大孢子母细胞的功能.

The result were as follows: The embryonic development began in the nucellus tissue from a archesporium cell which would divide to a sporogenous cell and a parietal cell.

结果表明：锥栗胚胎发育始于珠心组织中的一枚孢原细胞。

The archesporium is divided into a parietal cell and a sporogenous cell, by the periclinal division.

孢原细胞进行平周分裂形成一个周缘细胞和一个造孢细胞。

The female archesporium differentiates from many cells under the subhypodermis of nucellus.

雌性孢原为珠心亚表皮下多细胞。