360 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Summary by Minor Groups. 
Families 118 
Genera 
native 385 
introduced 89 
Total 474 
Species 
native 1123 
introduced 254 
Total 1377 
Varieties 
native 192 
introduced 17 
Total 209 
Forms 
native 65 
introduced 5 
Total 70 
Whole number of plants, (species, varieties and forms) not including 96 
listed as fugitives, 1,656. 
