Angiosperms are divided into two major classes, the monocotyledons (MONOCOTYLEDONAE) and dicotyledons (DICOTYLEDONAE), with a small basal group known as primitive dicotyledons.

 
  • 被子植物可以划分为两个纲,单子叶植物纲和双子叶植物纲。
今日热词
目录 附录 查词历史