CLASSIFICATION OF ANGIOSPERMS. 



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r 





serrate leaves, in the a:iils of which are formed the M„,T-'l ?™,""^ """""'"^ "'««^-oWo„g. 

 Industry, U. S. Department of AgriculturT bilabiate flowers. -Bureau of Plant 



peppermint and spearmint. The stems are erect or ascendin. 

 commonly branching and from 22 to 55 cm. high (Fig. 370). 



