10 



P. crnsgalli, var. echinatum, Torr. 



P. crnsgalli, var. hispidum, Gr. 

 This is an annual grass, with thick, stout culms, usually from 2 

 to 4 feet high. In the Southern States it is often employed and 

 considered a valuable grass. Professor Phares, of Mississippi, says 

 that " in that and some other States it is mowed annually, and is 

 said sometimes to furnish four or five tons of hay per acre. It an- 

 nually reseeds the ground and requires no cultivation or other care, 

 save protection from stock and the labor of harvesting. In one 

 county in Mississippi hundreds of acres are annually mowed on 

 single farms. Cows and horses are very fond of it, whether green 

 or dry."' In the Northern States it is hardly ever employed. 



15. P. Curtisii, Chapm. Florida to Texas. 



16. P. depauperatnm, Mxihl. New York to Texas. 



P. depanperatum, var. rectum, Torr. New York and New Eng- 

 land. 



17. P. dichotomnm, Linn. Throughout the United States. 

 P. dichotomnm, var. barbulatum, Gr. 



P. dichotomum, var. nitidum, Gr. 

 A wide-spread species of many forms, furnishing ranch wild for- 

 age, but not cultivated. 



18. P. divaricatum, Linn. 



A tropical and subtropical species found, in our country, only in 

 Florida and the Gulf States, near the coast. It is a shrubby, cane- 

 like species, the culms being woody and persistent. Only the leaves 

 and young shoots are eaten by cattle. 



19. P. fasciculatum, Swz. (P. striatum, Chapm., not Lam.) 

 P. fasciculatum) var. fuscum. (P. fuscum, Swz.) 



P. fasciculatum, var. reticulatum. (P. reticnlatum, Torr.) 

 This species extends from South Carolina to Texas. 



20. P. filiforme, Linn. (Digitaria filiformis, Muhl.) From Mas- 



sachusetts to Florida. 



21. P. gibbnm, Ell. South Carolina to Florida and Texas. 



An annual grass of large and vigorous growth, growing in wet 

 soils. It needs trial for cultivation. In the United States Exhibit 

 there are specimens from Florida 6 feet in length, sent by O. H.. 

 Kelly, Carrabelle. 



22. P. glabrum, Gaud. (Digitaria glabra, R. & S.) Introduced. 



