46 HORTUS GRAMINEUS WOBURNENSIS. 



the Pacific Ocean, in sunburnt sands. Humb. et. Bonpl. 

 Nov. Gener. et Spec. i. 115. t. 35. 

 CENCHRUS pilosus, ami. hairy-leaved serpent-grass, nat. of the 



province of New Barcelona, near to the Villa Pas. 

 Brownii, ann. Brown's serpent-grass, nat. of New Holland, 

 between the eastern and western tropics. Cenchrus in- 

 flexus, Brown. Prod. i. 195. 

 marginalis, ann. crisped-leaved serpent-grass, nat. of Guiana. 



Linn. Syst. Veg. ii. 258. 



PENNISETUM. Generic character : involucrum many times 

 double; exterior spines unequal, one double the length of 

 another, interior pinnate bearded; spikets numerous, from 

 2 to 5 ; calyx 2-valved, valves unequal ; florets, the inferior 

 unisexual, superior bisexual, sitting ; anthers, apex naked, 

 stigma feathered ; spike compound, spikets sitting. Linn. 

 Syst. Veg. ii. 10. 



setosum, bien. bristly pennisetum, nat. of India and Rio Janeiro. 

 Panicum polystachyon. Linn. Phalaris setacea, Frosk. 

 Sanicum alopecurus, Lam. Illus. 



purpurescem, per. purple pennisetum, nat. of arid soils in the 

 kingdom of Mexico. Humb. et Bonpl. Nov. Gener. et 

 Spec. i. 113. 

 conchroides, ami. ciliated pennisetum, nat. of the Cape of Good 



Hope. Panicum vulpinum, Willd. Enum. 

 orient ale, per. eastern pennisetum, nat. of Galatia. Richard. 



Linn. Syst. Veg. ii. 260 ; allied to panicum orientale. 

 violaceum, per. violet pennisetum, nat. of Senegal. Panicum 



violaceum, Lam. Illustr. No. 873. 

 helvolum, per. nat. of the East Indies. Brown Prod. i. 195. 



Setaria helvola, R. S. Linn. Syst. Veg. 



uniflorum, per. one-flowered pennisetum, nat. of the more tem- 

 perate plains of New Andalusia, near Cumanagoa. Humb. 

 et Bonpl. Nov. Gener. et Spec. i. 114. t. 34. 

 Italicum, ann. Italian, Brown Prod. Panicum Italicum, Host. 



Setaria Italica, R. S. Linn. Syst. Veg. 



compressum, ami. flat-stalked pennisetum, nat. of New Holland. 

 Brown. Prod. i. 195. 



SECT. II. Grasses with 2 Stamina, 1 Style, and the Calyx \-Jlowered. 



NARDUS. Mat-grass. Generic character : corolla 2-valved ; 

 calyx wanting ; seed linear, oblong. 



