THE SEDGE FAMILY. 143 



becoming familiar with several representatives of the 

 genus Carex, some time may be given to a few other 

 genera of Cyperacese, as, for example, Cyperus, Eleo- 

 charis, Scirpus, and Eriophoruin. An intelligent compari- 

 son of a limited number of well-developed and well-chosen 

 forms will place the student in a position to continue 

 his work satisfactorily ; but the study of sedges demands 

 clear judgment and unlimited patience, and will never 

 prove attractive to any one who is not possessed of 

 these qualities. For classification, Gray's Manual, sixth 

 edition, will serve a good purpose. Professor L. H. 

 Bailey's Types of the G-enus Carex, Memoirs of the Torrey 

 Botanical Club, Vol. I, No. I, is the most important con- 

 tribution that has yet been made to our knowledge of 

 North American species. 



