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

维管植囊内包围孢子母细胞的富含营养质的一层结构。

Ferns were the first terricolous vascular plants, and still comprise an important part of primary productivity of ecosystems.

蕨类植是最早陆的维管植，至今仍然是生态系统初级生产力的重要组成部分。

The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.

心产生孢子的维管植（羊齿类）还有具胚珠的裸子植的大孢子叶是同源的。