Traditionally, the flowering plants are divided into two groups, which in the Cronquist system are called Magnoliopsida (at the rank of class, formed from the family name Magnoliaceae) and Liliopsida (at the rank of class, formed from the family name Liliaceae).
Отдел цветковых растений традиционно подразделяется на 2 класса — "Magnoliopsida" (двудольные) от названия рода "Magnolia" и "Liliopsida" (однодольные) от названия рода "Lilium".