& 
Part 28 
PITTONIA. | 
A SERIES OF BOTANICAL PAPERS 
Vol. V. 
BY 
EDWARD L. GREENE, 
Associate in Botany, United States National Museum, 
WASHINGTON, D. ©. 
JUNE, 1905. 
CONTENTS. 
PAGE. 
Revreron or EscHscHOLTZIA 7 - 205 
A New PAPAVERACEOUS GENUS - 298 
A STUDY or DENDROMECON : i : 
SUGGESTIONS REGARDING SANGUINARIA - - 306 
Price One Dollar. 
= PAYOT, Upnam & Co.. San Francisco: WILLIAM WESLEY & Sox London. 
