332 BOTANY. 



hemp, are used for straining arrow-root and cocoa- 

 nut oil, and also as an application to incised wounds. 

 Society Isles ; native name mou-haari. 



Cenchrus, two species. One of these two species of 

 Hedge-hog Grass bears a globular flower at the extre- 

 mity of a procumbent stalk ; the other carries its flower 

 on an erect spike. Both kinds are equally annoying, 

 from the tenacity with which the barbed spines of their 

 fruit adhere to the clothing and skin of travellers. 

 California. 



TRIANDRIA. DIGYNIA. 



Arundo bambos. Bamboo. Society Isles, native 

 name hoe ; Marquesas, koe. 



Saccharum officinarum. Sugar-cane. Society Isles, 

 native name to ; Marquesas ; Sandwich Group. 



S. spontaneum. This is a very wild species of Sugar- 

 cane, which I have seen only on the hills of Maurua, 

 Society Group, and at Santa Christina, Marquesas. It 

 grows in dense thickets, and attains the height of four 

 or five feet. In stalk, foliage, and flower, it resembles 

 the officinal cane, but is much smaller. 



Panicum paradoxum. \ ~ 



"^ / Pasture-grasses. 



Eleusme Sp. > , . . ~ 



._ . ._ V Sandwich Group. 



Eragrostis pilosa. ) 



Digitaria composita. Marquesas, 

 D. ciliaris. Sandwich Isles. 



Festuca bromoides. 7 Pasture-grasses. 

 Setaria viridis. 5 St. Helena. 



