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1 



C N T E N T S 



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Page. 



^'oRTii American Species of Festuca. By Charles V, Pijier 1 



Introduction 1 



Synopsis of United States and Canadian species 8 



Notes on Mexican species 42 



The Gents Ptelea in the Western axd SocTinvESTEi;N Uxited States and 



Mexico. By Edward L. Greene 49 



Introduction 49 



, Synopsis of the species 53 



De^^criptions of the species 57 



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Studies or Mexican and Central American Plants— Xo. 5. By J. N. Eosc. 79 



Introductory notes 79 



Liliacoae , 87 



Ny mphaeaccae 93 



Ranunculaceae 95 



Rosaceae 95 



Mimosaceae 96 



CaeValpiniaceae 97 



Viciaceae , 99 



Krameriaceae 107 



Geraniaceae 108 



Oxalidaceae 109 



Linaceae 117 



Balsauiaceae 117 



Polygalaceae 122 



Malvaceae 123 



Hypericaceae 124 



Violaceae 125 



Cactaceae 125 



Apiaceae 127 



Addendum 131 



The Legc-minosae of Pokto Rico. By J. Perkins 133 



Introduction " 133 



Synopsis of the genera 134 



Descriptions of the genera and species _ 140 



Report on tue Diatoms of the Albatross voyages in Tiiii Pacific Ocean, 

 lSSS-1904. By Albert Mann, assisted in the bibliogrni»hy and citations hy 



P. L. Ricker 221 



Introduction 221 



Annotated catalogue of genera and species 230 



Data of the stations at Avhich diatoms were collected by the Allnvtross ... 390 



Bibliography 390 



The Cvperaceae of Costa Rica. By C, B. Clarke 443 



Synoptical key to the genera 443 



Annotated catalogue of tlie genera and species 444 



45609—08 11 IX 



