INTRODUCTION. Vll 



published in 1636; Eelhan's "Flora Cantabrigiensis," published 

 in 180&; Ray's "Synopsis Methodica Stirpium Britannicarum," 

 published in 1724; and a host of other botanists. 



It is purposed as an "addenda" to the "Natural History of 

 British Grasses/' to describe those Exotic species that are 

 remarkable, either as ornamental plants, useful as introduced 

 species for the agricultural community, or for their domestic 

 interest. 



In conclusion, I take this opportunity of soliciting of those 

 whose pursuits and inclinations lead them to a study of the 

 Grasses, their aid in specimens and information; for let it be 

 borne in mind, that every one has power to render valuable 

 aid, and in a work like the present, the more assistance that 

 is given, the better able will the author be to produce a work 

 worthy of that patronage which, from its cheapness, must have 

 a wide circulation. 



