TALL OAT GRASS. 221 



matic conditions are both highly favorable, renewal may 

 possibly be brought about by grazing in a way that will 

 admit of the falling of ^seed on the ground where it has 

 matured. In permanent pastures mixed in character, 

 and in which some of the other grasses are more aggres- 

 sive, it would not be easily possible to renew tall oat 

 grass. 



