iv .LABORATORY AND FIELD EXERCISES 



the textbook, on the study of plants as living organisms, closely 

 related and adapted to the environment at all seasons of the 

 year. The few species selected for field study are taken from 

 families represented in the spring flora which are of special 

 biological or economic interest. No attempt has been made to 

 outline practical studies for all important families of the spring 

 flora, since only a limited number of species could be studied 

 in an introductory course in college botany. 



Although these exercises have been written to accompany 

 the author's textbook, they can easily be adapted for use with 

 any text, or to accompany lectures in an introductory course 

 in botany or plant biology. 



