227] FLORA OF COLUMBIA AND VICINITY 85 



Order 7. GLUMIFLORALES. 

 Family 10. GRAMINEAE Juss. Grass family. 



22. ZEA L. Maize. 



32. Z. Mays L. Indian corn. 



The staple farm crop of the vicinity; the plants often 

 persistent in fields and waste places. 



Scarcely known in the wild state, but of neotropic origin; 

 now cultivated in all warm lands. 



23. TRIPSAOUM L. Gama grass. 



33. T. dactyloides L. 



A single patch by the Wabash R. R. just north of Columbia. 

 Rhode Island to Kans.'VS; Florida to Texas, Mexico and 

 South America. 



24. ANDROPOGON L. ISCHIZACHYRIUM 

 Nees.: SORGHUM Fers.: SORGHASTRUM 

 Nash: CHRYSOPOGON Tnn.]. Beard gr.^ss. 



34. A. scoparius Michx. \Schizacliyritim scoparium 

 (Michx.) Nash]. Broom grass. 



Sterile red clay hills and dry roadsides; infrequent. 

 New Brunswick to Alberta; Florida to Texas. 



35. A. furcatus Muhl. Turkey foot. 



Cliffs, dry banks, open thickets, and all wild open lands. 

 Maine to Manitoba; Florida to Texas. 



36. A.Hallii Mack. Hall's beard grass. 

 Roadsides; scarce. 



Missouri and Montana to Mexico. 



37. A. Halepensis (L.) Brot. [Sorglnttn Halcpcnse (L.) 

 Pers.]. Johnson gr.^ss. 



Persisting in meadows; common along the railroad at 

 Rocheport. 



Southern Europe and Asia, thence introduced into all 

 warm lands. 



