VEGETATIVE ORGANS OF GRASSES 



365 



BIBLIOGRAPHY. 



Pammel, L. H., Ball, Carlton R., Lamsoii-Scribiier, F., The Grasses 

 of Iowa, Pt. II: Iowa Geol. Survey, Supp. Rpt., 1903. 



Lamson-Scribner, F., American Grasses, II: Div. of Agros., U. S. 

 Dept. of Agr. Bull. 17, 1899. 



Tracy, S. M., A Report upon the Forage Plants and Forage Resources 

 of the Gulf States: U. S. Dept. of Agr., Div. of Agros. Bull. 15. 

 1898. 



Fig. 141. — Sporobolus cuspidaUis. 

 B, base of old culm ; C, new buds. 



Prairie Rush Grass. A, rhizome ; 



Fig. 142. — Sporobolus longifolvus. Long Leaved Rush Grass. A, Base of 

 old culm and rhizome ; B, new buds. 



