DICOTYLEDONS: ARCHICHLAMYDEZS 285 
It must not be thought that in this family and its allies the 
sepals and the petals are always just five in number; for 
Fic. 280.—Apocarpous flower of « buttercup, showing the head of distinct carpels 
—After Barton. 
they may be more numerous and may become even in- 
definitely numerous, as in the water-lily. Other well- 
Fic. 281.—Flowers and pods of the Mustard Family: A, cluster of flowers and 
young pods; B, ripe pod; C, opening pod showing seeds attached to the false 
partition. After WARMING. 
