338 



COLLEGE BOTANY 



leaves floating or immersed. This family is represented by the 



well-known water lilies. 



RA'NUNCULACE^E. Herbs, occasionally woody plants ; leaves 



frequently dissected ; flowers regular or irregular ; polype! alous 



or apetalous ; calyx often colored ; stamens numerous ; pistils few 



to many (occasionally single). 



This family includes many of our early spring flowers and 



.many ornamentals. Some of the most common are the buttercup, 



the hepatica, anemones., cle- 

 matis, columbine and lark- 

 spur. 



MAGNOLIACEVE. Trees or 

 shrubs ; flowers perfect ; calyx 

 and corolla colored alike and 

 in three or more rows of three 

 parts each ; pistils many and 

 usually closely packed, cov- 

 ering the elongated recep- 

 tacle and forming a dry or 

 somewhat fleshy, cone-like 

 fruit; leaf buds covered by 

 membranous stipules. This 

 familv includes the Mag- 



FIG. 176. Barberry. 



nolias, which are grown so 



extensively because of their beautiful flowers, and the tulip tree 

 (Liriodendron tulipifera), which is a very valuable forest tree. 

 ANONACEJE. Trees or shrubs ; flowers axillary, solitary, per- 

 fect and three-merous ; fruit very fleshy and containing many 

 large seeds. This family contains many very valuable tropical 

 fruit-producing plants. It is represented in the north tem- 

 perate zone by the American papaw (Asimina trilob(i). 



