186 MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



the glumes. Annuals or perennials with narrow flat blades and 

 dense spikelike or subcapitate panicles. Type species, Cynosurus 



cristatus. Name from Greek kuon 

 (kun-) dog, and our a, tail. 



Plants perennial; panicles narrow, spike- 

 like; awns inconspicuous 



1. C. CRISTATUS. 



Plants annual; panicles subcapitate; 

 awns conspicuous _ 2. C. ECHINATUS. 



1. Cynosurus cristatus L. 



CRESTED DOGTAIL. (Fig. 367, A.) 

 Perennial; culms tufted or genicu- 

 late at base, erect, 30 to 60 cm tall; 

 panicle spikelike, linear, more or 

 less curved, 3 to 8 cm long; pairs 

 of spikelets about 5 mm long; lem- 

 mas with awns mostly not more 

 than 1 mm long. 01 Fields and 

 waste places, Newfoundland to 

 Michigan and Virginia; Washing- 

 ton and Oregon (fig. 368); introduced from Europe. Occasionally 

 cultivated in mixtures for meadows but of little value. 



FIGURE 367. A. Cynosurus cristatus. Plant, X 

 Yi; fertile spikelet and floret, X 5. (Waghorne 

 23, Newf.) B. C. echinatus. Panicle X 1; fertile 

 floret, X 5. (Macoun 80976, Vancouver Isl.) 





