207] FLORA OF BOULDER, COLORADO 59 



33. CHAETOCHLOA Scribn. Foxtail. 



46. C. glauca (L.) Scribn. [Setaria glaiica (L.) Beauv.]. 

 Yellow foxtail. 



Along streets and waste places, 51QO-5700 ft. (Daniels, 

 773)- 



Europe, thence to North America. 



47. C. viridis (L.) Scribn. [S. viridis (L.) Beauv.]. Greex 

 foxtail. 



With the preceding, but far more common, 51QO-6000 ft. 

 (Daniels, 507). 



Europe, thence to North America. 



48. C. Italica (L.) Scribn. [S.Italica (L.) Kunth.]. Italian 

 millet. 



Escaped to roads and waste places, 5100-5700 ft. (Daniels)" 

 The Old World, thence to the New. 



34. CENCHHUS L. Bur-grass. 



49. C. Carolinianns Walt. [C. tribiiloidcs Auct., not L.]. 

 Sand-bur. 



Along railroads and on the sandy shores of streams, 5100- 

 6500 ft. (Daniels, 776). 



Maine to Minnesota; Florida to Texas and Colorado. 



35. HOMALOCENCHETJS Mieg. Catch-fly grass. 



50. H. oryzoides (L.) Poll. [Leersia orycoides (L.) Sw.]. 

 Rice cut-grass. 



Swales, streams, and irrigation ditches, 5 100-6000 ft. (Dan- 

 iels, 786). 



Nova Scotia to Washington; Florida to California: 

 Europe: Asia. 



36. PHALARIS L. Canary-grass. 



51. P. arundinacea L. Reed canary-grass. 



Swales and wet meadows near Boulder lake, 5300 ft. 

 (Daniels, 732). 



Temperate North America: Europe: Asia. 



