21. 
CONTENTS LA 
. Revision of the Genus Gymnolomia. 
. Supplementary Notes upon Calea, Tridax, and Mikanva. 
By B. L. Ropinson and J. M. GREENMAN. 
. New Species and Varieties of Mexican Plants. By J. M. 
GREENMAN. 
. Synopses of the Genera Jaegeria and Russelia. By B. L. 
ROBINSON. 
. New Dioscoreas from Mexico. By E. B. ULINE. 
. New Phaenogams, chiefly Gamopetalae, from Mexico and Central 
America. By B. L. Roprnson. 
. A Synopsis of the Mexican and Central American Species of 
Salvia. 
. A Revision of the Mexican and Central American Solanums of the 
Subsection Torvaria. 
. Some undescribed Mexican Phanerogams, chiefly Labiatae and 
Solanaceae. 
By M. L. FERNALD. 
. Synopsis of the Genus Melampodium. 
Synopsis of the Genus Nocca. 
. New Species and newly noted Synonymy among the Spermato- 
phytes of Mexico and Central America. 
By B. L. Rosryson. 
Some new Spermatophytes from Mexico and Central America. By 
M. L. FERNALD. 
22. I. The Northeastern Carices of the Section Hyparrhenae. 
. The Variation of some Boreal Carices. With 5 plates. 
By M. L. FERNALD. 
23. The Relationships of some American and Old World Birches. With 
2 plates. By M. L. FERNALD. 
24. Flora of the Galapagos Islands. With 3 plates. By B. L. Rosprson. 
25. New and otherwise Noteworthy Angiosperms from Mexico and 
Central America. By J. M. GREENMAN. 
