SMITHSONIAN INSTITUTION 
UNITED STATES NATIONAL MUSEUM 
WASHINGTON, D. C. 
October 22, 1928. 
Dr. B. L. Robinson, 
Gray Herbarium of Harvard Univeriity, 
Cambridge. Massachusetts. 
Dear Doctor Robinson: 
Doctor Trelease has named the Piperaceae of the Killip-Smith col¬ 
lection which were not represented in his duplicate set, but which were 
in ours. There still remain the true unicates occurring in the Gray Her 
barium set, and which I believe you are to send him. 
Sincerely yours, 
Ellsworth P. Killip 
Associate Curator, 
Division of Plants. 
Enclosure 
