26 
in many rambles, has made frequent observations regarding 
the trees and shrubs, and has cultivated extensively many 
of our native plants. Of those who have contributed to 
swell the list of known county species of plants and who 
have not published any writings on the subject, it will be 
impossible to speak separately. They must be content to 
feel that they have aided the cause of botanical knowledge as 
they certainly have, and are deserving their share of credit 
for so doing. There are many who have collected and 
prepared specimens which will always serve as pleasant 
reminders of their work. Among such are Mr. B. D. 
Greene, who added several plants to the flora from near 
Tewksbury ; Mr. Wm. P. Richardson and Mr. S. Bass, 
who botanized near Salem; and more recently Mrs. Alex. 
Bray, Mrs. Charles Grover, Mrs. J. Babson and Mrs. 
Davis, who have added many species to the list of Cape 
Ann Alge; Mr. Frank Lufkin of Pigeon Cove, who has 
noticed many plants new to that region; Mr. John H. 
Sears, of Danvers, whose specialty, the forest trees, has 
been the means of bringing together at the Museum of the 
Peabody Academy of Science one of the best local collec- 
tions of native woods in any museum; Mr. W. P. Conant, 
who has added many species of Cyperaceze and Graminez 
and a rare Botrychium to the flora; besides many others 
whose names will appear in the list associated with the 
‘plant which they have been fortunate to discover. 
To those whose assistance either by their writings, by 
specimens contributed, or who have rendered any assist- 
ance by information or other attention, the writer desires 
to express his warmest thanks. It would be impossible for 
him to specify those who have aided him or their manner 
of so doing, and he can only thank all collectively which 
he does most sincerely. 

