LIFE FORMS 



51 



Fig. 4. — Tall-grass relict (Tnpsacum dactyloides) in mid grasses of the true 

 prairie; eastern Kansas. (Photo by Edith Clements.) 



Fig. 5. — Buffalo grass (Buchlue ductyluida;), a feud-formniy, .-hon grass, migrat- 

 ing by means of stolons; western South Dakota. (Photo by Edith Clements.) 



