iNTRnnucTnRy ndte 



The total destruction of the herbarium of the Institute by fire 

 on the evening of January 14, 1902, has placed the compiler in 

 an embarrassing situation, since it has deprived him of the usual 

 vouchers. He has accordingl}^ been careful to include nothing 

 in the following list which could not be positively identified by 

 memorj^ or by the notes of accurate and experienced observ- 

 ers. 



He desires to express his indebtedness to his friend Dr. A. A. 

 Briggs, of Andover, for invaluable assistance in the preparation 

 of the list of Carices. 



