Proceedings of the American Academy of Arts and Sciences, 
Vo_. XXXIIL No. 5. — OctesEr, 1897. 
CONTRIBUTIONS FROM THE GRAY HERBARIUM OF 
HARVARD UNIVERSITY. 
New Sreriszs. — No. XIL 
By M. L.. Fernacp. 
I. A Systematic Study of the United States and Mexican Species 
of Peetis. 
Il. Some R: are and Undescribed Plants collected by Dr. Edward gb nt 
at Acapulco, Mexico. 
