eS a 
~ 49-1 
Proceedings of the American Academy of Arts and Sciences. 
Vou. XLII. No. 1.— May, 1906. fA 
CONTRIBUTIONS FROM THE GRAY HERBARIUM OF HARVAR 
UNIVERSITY. a ot 
New Serres. — No. XXXII. 
STUDIES IN THE EUPATORIEAE. 
I. Revision of the Genus Pigueria. 
- II. Revision of the Genus Ophryosporus. 
_ IIL. The Genus Helogyne and its Synonyms. 
IV. Diagnoses and Synonymy of Hupatorieae and of certain otier tp 
Compositae which have been classed with them. 
+ © 
By B. L. RopixsS§. 
h 
. vo. Bot. Garcen 
1909 
