HOW TO KNOW THE GRASSES 



Tribe XIII. TRIPSACEAE. Stout, tall, corn-like plants, 

 usually with solid stems. Spikelets are all uni- 

 sexual, the staminate ones borne in one or more 

 terminal racemes (sometimes forming a tassel), the 

 pistillate ones borne in bony beads or rachis joints, 

 or on cobs. The only common genera except Zea 

 (corn) are Tripsacum (gama grass) and Job's Tears 

 (Coix). Fig. 22. Pages 184, 185. 



Figure 22 



SOME USEFUL BOOKS ON GRASSES 



HE following short Hst includes some of the principal books 

 useful for identification or study of American grasses. 

 The list is not intended to be complete, and some books 

 which are old or unavailable have been omitted. You 

 will find that a book on the grasses of your own state, 

 or an adjacent one, will often make identification easier 

 than such comprehensive works as Hitchcock's Manual, 

 which covers a large and diverse area. 



Blomquist, H. L. 1948. The grasses of North Carolina, pp. vi plus 

 276. Keys, descriptions and illustrations. Duke Univ. Press. Dur- 

 ham. 



Beetle, A. A. 1947. Distribution of the native grasses of California. 

 Hilgardia 17: 309-357. Maps of distributions and discussions of 

 ranges of the species; no keys or descriptions. 



Chase, Agnes. 1937. First book of grasses. Revised edition, pp. 

 xiii plus 125. Good, well-illustrated explanations of spikelet struc- 

 ture for the various tribes. W. A. Silveus, San Antonio, Tex. 



Core, E. L., E. E. Berkley, and H. A. Davis. 1944. West Virginia 

 grasses. Bull. 313, West Va. Agric. Expt. Sta. pp. 96. Keys, 

 descriptions, illustrations. 



Deam, C. C. 1929. Grasses of Indiana, pp. 356. Keys, descrip- 

 tions, maps, illustrations. Pub. 82, Indiana Dept. of Conservation. 

 IndianapoHs. 



Dore, W. G. and A. E. Roland. 1942. The grasses of Nova Scotia. 

 Proc. Nova Scotia Instit. of Sci. XX: 177-288. Keys, discussions, 

 illustrations, maps. 



Fassett, N. C. 1951. Grasses of Wisconsin, pp. 173. Keys, maps, 

 illustrations. Univ. of Wisconsin Press. Madison. 



Featherly, H. I. 1946. Manual of the grasses of Oklahoma. Bull. 21, 

 Okla. Agric. and Mechan. College, pp. 137. Keys, descriptions, 

 illustrations. 



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