GAMOPETALiE-I 



107 



Fig. 66.— Spearmint {Mentha viridh) 



a, SiiJgle fluwer. 



Oil of Spearniint is obtained by a di 

 "'esh flowering plants. 



Corn IMint (Mentha arvensis). — This 

 ^s a very common plant in cornfields. It 

 IS best identified from the calyx, which 

 ^^ hell-i^Jictped, and ivhich possesses tri- 

 ^^^igular teeth as broad as they are long. 

 -'^be leaves arc stalked, ovate, and serrate 

 (%• 67). Although of high repute in 

 tormer days, both from a culinary and 



i'iir. ez.— Leaf of 

 Com Mint {Mentha 



