LIST OF ILLUSTRATIONS. 
Frontispiece, Approach to the Garden. 
Plate 1, Yucca Treculeana ..... =... + © Facing page 5 
a | 6 oe ek a eee és a 5 
“ a, % filifera . « «0 0.0 8s 8 0 8% “ “o. 
sé ele TOP od eos sore cca ets ete a¢ “18 
cb, ~ BrOvNOUR .. 4 = 5 0 ek 4 id “21 
“5, “. glowlome....« «acs 0 0 8 2. ee. 8 “ « a1 
“ 7% “. ghavlopn and aloifolia ... 2 6s hd ss 86 
“s 8, “ angustifolia . . . . . . . . ° . “6 ‘ 40 
SEE See gs yg eee Serle, ti? gt geen ed oO 44 
“e-10, © filamemtosoa......-s 0c eis wid =. 5 
Ty, 7 PRM owes ee - oe ee “ i“ ST 
“ , *- Whipplel’. >. ieee 68ers “ “62 
‘« 18-33, North American Species of Rumex . . . After ‘* 98 
‘¢ 34-43, Yucca Moths Yucca Pollination . ... ‘6 s¢ 158 
«~~ 44-54, Detail Illustrations of Yucca . . .. a “ 166 
**. 565-56, Agave Engelmanni... . . se © /s x ‘s #6..168 
at: BF; Parmelia molliuscula . . . .« + -«s aid “170 
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