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1·The tapetum degenerates too early.

绒毡层过早退化；

2·Tapetum belong the secretory type.

绒毡层属腺质型。

3·Tapetum conforms to secretory type.

绒毡层为分泌型。

4·The development of tapetum is glandular type.

花药绒毡层属腺质绒毡层类型。

5·The tapetum belongs to the periplasmodial type.

绒毡层属于周原质团型。

6·The tapetum belongs to glandular type and has two nuclei.

绒毡层细胞为腺质，二核。

7·In flowering plants, tapetum plays an important role in pollen development.

高等开花植物的花药绒毡层在花粉发育中发挥十分重要作用。

8·The features of structure of anther wall are of one meddle layer and glandular tapetum.

药壁的结构特点为一层中层和腺质绒毡层。

9·Tapetum (pl. tapeta) A food-rich layer surrounding the spore mother cells in the anthers of vascular plants.

绒毡层：维管植物花粉囊内包围孢子母细胞的富含营养物质的一层结构。

10·The anther is made up of an outer epidermis, a middle fibrous layer, and an inner nutritive layer, the tapetum.

花药壁由外表皮层，中间纤维层，内部营养层和绒毡层构成。

绒毡层

1·The ubisch bodies which appeared on the inner tangential wall of the tapetum at the time of microspore wall formation are partially remain on the surface of matured pollen grain.

小孢子壁形成时开始在绒毡层内切线壁出现的球状体到花粉粒成熟时仍有一部分附着于花粉粒表面。

2·Megaspore tetrad is linear. the chalazal megaspore develops into an embryo sac of polygonum type. Hypostase and special integument tapetum exist in the ovule.

大胞子四分体线形排列，合点端大孢子为功能大孢子，胚囊发育类型为蓼型，具有特化的珠被绒毡层和承珠盘。

3·The main pathways of causing empty anther sacs are obvious enlargement and liquidization of tapetum cells from tetrad to slope nucleus early period;

空囊产生的主要途径：①四分体至单核早期绒毡层细胞体积发生明显的增大、液化；