BOTANY. 249 



Cenchrus echinatus, Hab. in Porto Rico. 



Plileum"? 



Holcus so^ghum^ 



Aristida , species imperfect. 



Cynosurus '. 



Crypsis , species imperfect. 



Cynodon ^. 



Dactylis , species imperfect. 



Eleusine — an cruciata ? 

 Poa reptans. 

 Gramen ''. 



d Glumis maculatis, purpurascentibus, spiculis alternis, lateralibus terminalibusque. 



"= Native name, Couscous. The natives boil it till it becomes a kind of paste, which they 

 eat as we do bread. A dull red dye for cotton is extracted from its stem. It very much 

 resembles the holcus sorghum from Coromandel. 



' The same as that found in the Isle of France by Commerson. 



E Apparently that species brought by Commerson from Brazil. 



'' Rhachis dens6 spicata. Spiculse solitariae. Glumae uniflorse, piloso-plumosse. Cor. 

 2-valvis, valvulis fere cequalibus. Styli 2. Stam. 1. Flores hermaphroditi. Cetera ignota. 

 A grass, brought from the Cape of Good Hope by M. Lalande, resembles this very strongly ; 

 it is not yet named. 



' Flores masculi. Glumse 2-valvis. Cor. 2-valvis. Stam. 3. Dense spicatum. 



^ Flores polygami, cum involucro pilorum rigidorum. Glumse l-florse, 2-valvis, valvulis 

 vald^ inaequalibus. Cor. 2-valvis, valvulis inaequalibus. 



' Flores inferiores hermaphroditi, superiorea masculi. Stam. 3. Stylus 1. Rhachis dense 

 spicata. 



■n Flores monoici, cum involucro lanuginoso, et pilis purpurascentibus. Glumse 2-flor3e. 

 Flores superiores fem. infer, raasc. 



" Flores hermaphroditi. Glumae l-florae, 1-valvatoe, rauticee. Cor. 2-valvis, valvulis com- 

 pressis, insequalibus, interiori minori, exteriore amplexo. Stam. 3. Styl. 1. Stigmata 

 capillaria. Flores cum involucro plumoso, dens6 paniculati. Spicula singula fascicule 

 foliorum parvorum, et folio majore spathae instar instructa. The native name is Boignfall, 

 and it is thrown into the warm baths used after fevers. 



2 K 



