Proceedings of the American Academy of Arts and Sciences. 
Vou. XLIV. No. 21.— May, 1909. 
CONTRIBUTIONS FROM THE GRAY HERBARIUM 
F HARVARD UNIVERSITY. 
New Series. — No. XXXVI. 
Diagnoses and Transfers of Tropical American Phanerogams. 
By B. L. Rostnson. 
The Purple-flowered Androcerae of Mexico and the Southern 
United States. By H. H. Barriert. ae 
Descriptions of Mexican Phanerogams. By H. H. Bart 
LETT. 
I. Synopsis of the Mexican and Central American Species of 
astilleja. By A. Eastwoop. 
If. A Revision of the Genus Rumfordia. By B. L. Rosrnson. 
III. A Synopsis of the American Species of Litsea. By H. H. 
BaRTLerr. . 
IV. Some Undescribed Species of Mexican Phanerogams. By 
A. Eastwoop. 
V. Notes on Mexican and Central American Alders. By H. H. 
BartLert. 
VI. 
VII. 
VII. 
ww. BOT, CARDEN 
igiO 
