$ 
ee a 
ey eo 
LIST OF ILLUSTRATIONS. 
Frontispiece: E. Lewis Sturtevant. 
Group of Palms 
Pampas Grasses . . 
The Goose Flower . . 
An Agave Corner . oe 
Plates 1-54, Pres] Grasses . . . . 
Plates 55-56, Disease of Beech Roots 
(6) 
