00960cam a22002651 4500 agr36000296 DLC 20260227110955.0 760626s1936 dcua f001 0 eng agr36000296 (OCoLC)2282723 DLC TxDW OCoLC DLC premarc S21 .A7 no. 772a QK495.G74 H513 1936 Copy 2. Hitchcock, A. S. (Albert Spear), 1865-1935. The genera of grasses of the United States with special reference to the economic species. By A. S. Hitchcock. Issued March 1920; revised May 1936. Washington [U.S. Govt print. off., 1936] 302 p. illus., xx pl. on 10 l. 26 cm. U. S. Dept of Agriculture. Bulletin no. 772. Professional paper. Contribution from Bureau of plant industry. Revised by Agnes Chase. Grasses United States. 9726 9726