Proceedings of the American Academy of Arts and Sciences. 
Vou. XL. No. 1.—Jury, 1904. 
‘ 
CONTRIBUTIONS- FROM .THE GRAY HERBARIUM OF 
HARVARD UNIVERSITY. 
‘ 3 / 
New Serigs. — No. XXVIII. 
I. _ Revision of the Genus Sabazia. - By B. L. Ropinson and J. M. 
~  GREENMAN. 
II. Revision of the Mexican and Central American Rpocies of Trixis. 
By B. L. Rosrnson and J. M. Greenman. 
III. Revision of the Mexican: and Central American Species of Hiera- 
cium. By B. L. Rosinson and J. M. GREENMAN. 
IV. Synopsis of the Mexican and Central American Species of Alnus. 
By M. L. Fernavp. 
V. Diagnoses and Synonymy of Mexican and Central American ; 
Spermatophytes. By J. M. Greenman. : 
-VI. 
-— 
Some New Species of Mexican and Nicaraguan Dicotyledons. By 
M. L. Fexnacp. 
