NTRODUCTION, 



Very few of the grasses illustrated in this, the second, part have ever been fisnred 

 before, many of tlicm indeed being new species. The principal synonyms, where they 

 exist, are given. The drawings were made in the Department and the engravings are 

 well executed. It is hoped that very few errors will be found in either text or illustra- 

 tions. 



The descriptions of the species are almost wholly the work of Mv. L. II. Dewey, 

 Assistant Botanist. 



Geo. Vasey. 



