HORTUS GRAMINEUS W OBURN ENSIS. 23 



CENCHRUS hordeiformis, arm. barley-like serpent-grass, 

 nat. of the Cape of Good Hope. 

 ovatus, ami. oval-spiked serpent-grass, nat. of the Cape of 



Good Hope. 

 tomentosus, arm. woolly serpent-grass, nat. of the Cape of 



Good Hope. 

 frutescens, arm. shrubby serpent-grass, nat. of Achaia and 



Messina, on the sea coast. 

 Australis, arm. Botany Bay serpent-grass, nat. of New 



Holland. 

 calyciilatus, arm. glomerate serpent-grass, nat. of the 



Friendly Isles. 

 iriflexus, arm. inflex branched serpent-grass, nat. of Guiana. 

 mr/ssuroides, arm. mouse-tail serpent- grass, nat. of the 



shores of the Pacific Ocean, in sunburnt sands. 

 pilosus, ariri. hairy-leaved serpent-grass, nat. of the pro- 

 vince of New Barcelona. 

 Brotvrrii,arm. Brown's serpent-grass, nat. of New Holland. 

 margirialis, arm. crisped -leaved serpent -grass, nat. of 

 Guiana, 

 PENNISETUM. Generic character : involucrurn many 

 times double ; exterior spines unequal, one double the 

 length of the other, interior pinnate — bearded ; spikelets 

 numerous, from two to five ; calr/x two-valved, valves 

 unequal ; Jiorxts, the inferior unisexual, superior 

 bisexual, sitting ; anthers, apex naked ; stigma fea- 

 thered ; spike compound, spikelets sitting. 

 setosum, Men. bristly pennisetum, nat. of India and Rio 



Janeiro. 

 purpurescens, per. purple pennisetum, nat. of arid soils in 



the kinodom of Mexico. 

 conchroides, arm. ciliated pennisetum, nat. of the Cape of 



Good Hope. 

 orientate, per. eastern pennisetum, nat. of Galatia. 

 molaceurn, per. violet pennisetum, nat. of Senegal. 

 helvolum, per. nat. of the East Indies. 

 imijlorum, per. one-flowered pennisetum, nat. of the more 



temperate plains of New Andalusia. 

 Italicum, arm. Italian. 



