IN LIBELLO CONTENTORUM 
INDEX. 
Dedicatio 
Prceloquium dissertatorium. 
Conspectus Cactearum synopticus, 
ante pag 
Ante lectionem emendanda. 
Epilogus criticus 
Adnotatio monitoria 
GENERA NOVA. Anhalonium . 
Astrophytum. 
Echinonyctanthus 
PlLOCEREUS . 
SPECIES NOV^E. 
Echinocactus 
Acanthodes . 
— 
Aulacogonus. . 
— 
Gracillimus . 
— 
Grandicornis 
— 
Helophorus • 
— 
H exaedrophorus . 
— 
Horizonthalonius . 
' • — 
Hyptiacanthus. 
— 
Hystrichacanthus . 
— 
P ectiniferus 
• — 
Phyllacanthoides . 
— 
Pycnoxyphus . . 
— 
Submammulosus. . 
f 
Tetracentrus . . 
— 
Thrincogonus . 
Mammillaria 
Acicularis 
— 
Ancistracantha 
— 
Ancistroides 
— 
Anancistria. . 
— 
Celsiana. . . . 
— 
Centricirrha. . 
— 
Glochidiata ser. 
— 
Guilleminiana . 
I 
III 
V 
1 
116 
110 
113 
1 
3 
10 
6 
106 
14 
24 
30 
12 
27 
19 
21 
17 
25 
28 
16 
20 
31 
22 
34 
36 
38 
39 
41 
42 
40 
48 
