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