North American Cypcracue. 245 



I'ers in British America, for many specimens from the North 

 West Coast, and for a set of Mr. Druminond's plants collected 

 in Louisiana and Texas, containing many rare species of this 

 family. To my excellent friend G. W. Arnott, Esq. of Scotland, I 

 am under many obligations for a good set of the Cyperacete col- 

 lected by Dr. Wight in the Peninsula of India, which have been of 

 great use to me in the examination of our native species, as they 

 are duplicates of the collection from which N. ab Esenbeck prepar- 

 ed his Cyperaceoe Indicae. I have also received many other 

 exotic Cyperacese from Mr. Arnott and Dr. Lindley. Major Le 

 Conte, Rev. M. A. Curtis of North Carolina, H. B. Croomy 

 Esq. of Tallahassee, Dr. Chapman of Middle Florida, Dr. In- 

 galls of New Orleans, and Dr. Loomis of Georgia have sup- 

 plied me with numerous specimens of southern Cyperacese. 

 Dr. Pitcher of the Army, has contributed some valuable mate- 

 rials from Arkansas, and from the borders of the great lakes. 

 The late estimable Stephen Elliott, Esq. supplied my herba- 

 rium with several of the Cyperaceoe described in his excellent 

 Flora ; and I only regret that I have not been able, by an ex- 

 amination of his 6wn herbarium, to verify all the species 

 which he has described. Prof. Dewey has sent me nwst 

 of the Carices described in his valuable Caricography. My 

 valued friend B. D. Greene, Esq. of Boston has supplied me 

 with New England and southern Cyperaceae, and likewise 

 loaned me his entire set of Texan plants collected by the late" 

 Mr. Drummond. T. A. Greene, Esq. and Prof. Hitchcock of 

 Amherst, have contributed several interesting plants of this 

 family, from Massachusetts. To my highly esteemed corres- 

 pondent, Dr. Short of Kentucky, as also to Dr. Peter, I am 

 greatly indebted for large supplies of the Cyperaceae of that 

 state. My excellent friend, J. Carey, Esq. has greatly obliged 

 me by the communication of many valuable observations on the 

 subjects of this monograph, as well as by supplying me witl> 

 specimens from various localities. Some interesting Cypera- 

 ceae have been obligingly sent to me by Dr. Darlington, from 

 Chester County, Pennsyh ania. My lamented friend the late 

 Rev. Dr. Sclnvcinitz was a large contributor to mv herbarium, 



