INDEX TO THE GENERA 
A. 
Aclara 
9 
Aquilegia - 
- 
12 
Aetcea 
- 
13 
Ascyrum - 
- 
13 
Jlnona 
- 
18 
Anemone - 
- 
19 
Anemone 
- 
23 
Antirrhinum 
- 
43 
Arab is 
- 
56 
. Irachis 
- 
75 
-Sschynomene 
- 
80 
Apios 
82 
Arctium 
- 
94 
Anonymos - 
- 
96 
Agevatum 
- 
100 
Aster 
- 
lor 
Aster 
- 
109 
Anthem is - 
- 
126 
Achillea 
- 
127 
Actinomeris 
- 
132 
Ambrosia 
. 
133 
Arethusa - 
- 
141 
Arethiisa 
- 
144 
Aristolochia 
- 
145 
Asarum 
146 
Alnus 
- 
159 
Amaranlhus 
- 
162 
Alisma 
- 
166 
Arum 
- 
180 
Abies 
- 
182 
Acalypha 
- 
184 
Acnida 
- • 
193 
Aspidium 
- 
208 
Asplenium 
- 
210 
Adiantum 
- 
212 
Aristida (addenda) 
Agrostis (do.) 
Acer (do.) 
Arundo (do.) 
Andromeda (do.) 
Anthopogon (do.) 
B. 
Brasenia 
- 
26 
Brachystemum 
- 
36, 35 
Bignonia 
- 
43 
Barbarea - 
- 
54 
Bicucullata 
68 
Buphthalmum 
- 
127 
Bidens 
- 
- 130 
Betula 
- 
160, 159 
Boehmeria 
- 
- 160 
Betula 
- 
174 
Botrychium 
- 
- 204 
Botrypus 
- 
204 
Bucknera (addenda) 
C. 
Cistus 
- 
7 
Chelidonium 
- 
8 
Cast alia 
- 
12 
Cimicifuga 
12 
Clematis 
- 
19 
Caltha 
22 
Cyamus 
- 
26 
Clinopodiwn 
- 
34 
Clinop odium 
- 
36 
Chelone 
- 
47 
Chelone 
- 
48 
Cardamine 
- 
57 
Cardamine (addenda) 
Corydalis 
- 
68 
Crotalaria - 
- 
71 
Clitoria 
- 
83 
Cichorium - 
- 
88 
Cnicus 
- 
94 
Cardiius 
- 
95, 94 
Cirsium 
- 
95 
Chrysochoma 
- 
96 
Cvitonia 
- 
97 
Cacalia 
- 
102 
Conyza 
- 
109, 108 
Chrysocoma 
- 
122 
Chry santh emum 
- 126 
Coreopsis 
- 
133, 131 
N. B. The words of the Index in Italics are synonymous genera, and are only 
to he found under other generic terms. 
voli. II. 20 
