CONCLUSION. 



In the present Work there are several species not enumerated, some 

 being of doubtful origin, and others so exceedingly rare as scarcely to 

 be procured: they are mentioned briefly in the addenda. At the con- 

 clusion of this Work the author intended to have commenced a Natural 

 History of those Foreign Grasses that were remarkable for their beauty, 

 singularity, or economic values; this latter Work, however, will be 

 deferred, as the author cannot devote the time requisite for this un- 

 dertaking at the present moment. In order to distinguish the species 

 of British Grasses, the author has appended a 



COMPARATIVE ANALYSIS, 



AiEANGED BY Me. RaLFS. 



OEDER I.— MONOGYNIA. 



One style. 



Stigma one. 

 Stigmas two. 



. Nardus. 

 Some Grasses. 



CLASS II.— DIANDRIA. 



Two styles. 



ORDER II.— DIGYNIA. 



Two styles. 



Calyx single-flowered 

 Calyx two or more flowered 



Anthoxanthum. 

 Some Grasses. 



DIANDRIA. 



Digynia. 



Anthoxanthum. 

 Calyx valves very unequal 



Odoratum. 



CLASS III.— TRIANDRIA. 

 1. Flowers spiked . 

 Flowers panicled 



Three stamens. 



2 

 12 



2 L 



