Proceedings of the American Academy of Arts and Sciences. 

 Vol. XLIII. No. 2. — Juxe, 1907. 



CONTRIBUTIONS FROM THE GRAY HERBARIUM OF 

 HARVARD UNIVERSITY. 



New Series. — No. XXXIV. 



I. New Species of Senecio and Sckoenocaulon from Mexico. By 

 J. M. Greenman. 



II. New or otherwise Noteworthy Spermatoph3rtes, chiefly from 

 Mexico. By B. L. Robinson. 



III. New Plants from Guatemala and Mexico collected chiefly by 



C. C. Deam. By B. L. Robinson and H. H. Bartlett. 



IV. Diagnoses of New Spermatophytes from Mexico. By M. L. 



Fernald. 



