CONTENTS. 



Page. 



Introductory, - - 281 



Catalogue of Species, ---.-..-.. 285 



Summary of Orders, - - - ....... 027 



Index, (Local Names), ---------- 020 



Index, (Generic), - - - - - - - - . - . 033 



ILLUSTRATIONS. 



Plate \'III. - - Agaricus Yucatanensis E. & E. 

 IX. - - New Yucatan Fungi. 



X. - - Selaginella longispicata Underw. 

 XI. - - Setariopsis latiglumis (\'asey) Scribn. 



XII. - - Peperomia glutinosa Alillsp. 

 XIII. - - Cracca Greenmanii Millsp. 



XI\'. - - Argithamnia tinctoria Millsp. 



Xy. - - Croton arboreus Millsp. 



XVI. - - Euphorbia Mayana Millsp. 

 XML - - PedilanthuB nodiflorus Millsp. 



X\'III. - - Pedilanthus Itzaeus Millsp. 

 XIX. - - Quararibea Fieldii Millsp. 



XX. - - Corallocarpus Millspaughi Cogn 

 XXI. - - Map. Peninsula of Yucatan. 



