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CONTENTS 
Revision of the Genus 7ridaz. 
Synopsis of the Mexican and Central American Species of the — 
Genus Mikania. 
Revision of the Genus Zinnia. 
. Revision of the Mexican and Central American Species of the — 
Genus Calea. 
A Provisional Key to the Species of Porophyllum ranging North 
of the Isthmus of Panama. 
Descriptions of New and Little Known Phanerogams, chiefly 
from Oaxaca. 
By B. L. Ropryson and J. M. GREENMAN. 
Revision of the Mexican and Central American Species of — 
Houstonia. 
.- Key to the Mexican Species of Liabum. 
Descriptions of New or Little Known Plants from Mexico. 
By J. M. GREENMAN. 
A Systematic Study of the United States and Mexican Species of 
Pectis. 
Some Rare and Undescribed Plants collected by’ Dr. Edward 
Palmer, at Acapulco, Mexico. . 
M. L. FERNALD. 
Revision of the North American and Mexican Species of Mimosa, : | 
Revision of the North American species of Neptunia. 
y B. L. Ropryson. 
. Revision of the Mexican and Central American Species of Galiwm 
and Relbunium. 
. Diagnoses of New and Critical Mexican Phanerogams. 
By J. M. GREENMAN. 
Eleocharis ovata and its American Allies. 
Scirpus Eriophorum and some Related Forms. With 1 plate. 
By M. L. FERNALD. | 
Revision of the Genera Montanoa, Perymenium, and Zaluzania. — 
By B. L. Ropryson and J. M. GREENMAN. 
Synopsis of the Genus Verbesina, with an analytical Key to the 
Species. 
By B. L. Ropryson and J. M. GREENMAN. 
. Some new Species, extended Ranges, and newly noted Identities — 
among the Mexican Phanerogams. By J. M. GREENMAN. 
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