LIST OF ILLUSTRATIONS. 
Wrontispiece: The plant houses. 
Sumach and Aralia Be ica ae 
The rockery (Opuntia Missouriensis) .. . 
The bog (Sarracenia flava) . 
Stapelia grandiflora 
Stapelia rufescens 
Sarauela Carnerosana . 
Piates 1-99, Yucceae 
(6) 
Facing p. 
‘c “ 
. Following p. 133 
27 
