Echinocactus—continued. 
denudatus roseiflorus, 156 
denudatus scheidelianus. 155 
denudatus typicus, 155 
denudatus wagnerianus, 155 
denudatus wieditzianus, 155 
depressus, 176, 235 
dichroacanthus, 117 
dichroacanthus spinosior, 117 
dietrichianus, 137 
dietrichii, 118, 119 
diguetii, 131, 132 
disciformis, 106 
dolichacanthus, 136 
dolichocentrus, 136 
dumesnilianus, 79 
durangensis, 152 
ebenacanthus, 99 
ebenacanthus affinis, 99 
ebenacanthus intermedius, 99 
ebenacanthus minor, 99 
echidna, 136 
echidne, 136 
echidne gilvus, 136 
echinatus, 177 
echinoides, 88, 89 
edulis, 170 
elachisanthus, 205 
electracanthus, 138, 139 
electracanthus capuliger, 138 
electracanthus haematacanthus, 147 
electracanthus rufispinus, 139 
ellemeetii, 121 
emoryi, 127, 128, 132, 133, 134 
emoryi chrysacanthus, 127 
emoryi rectispinus, 134 
engelmannii, 38 
ensiferus, 114 
ensiferus pallidus, 114 
equitans, 175 
erectocentrus, 148, 149 
erinaceus, 198, 199, 200 
erinaceus elatior, 199 
escayachensis, 205 
exsculptus, 97, 98, 110 
exsculptus cristatus, 98 
exsculptus dichroacanthus, 98 
exsculptus elatior, 98 
exsculptus foveolatus, 98 
exsculptus fulvispinus, 98 
exsculptus gayanus, 98 
exsculptus tenuispinus, 98 
exsculptus thrincogonus, 98 
eyriesii, 60, 65, 66, 142 
eyriesii glaucus, 66 
falconeri, 127, 128 
fennellii, 158 
ferox, 158 
fiebrigii, 46, 47 
fiedlerianus, 87 
fischeri, 178, 238 
flavescens, 138 
flavicoma, 179 
flavispinus, 143, 145 
flavovirens, 138, 147 
flexispinus, 117, 144 
flexuosus, 121 
floricomus, 200, 201 
INDEX. 243 
Echinocactus—continued. 
fluctuosus, 121 
fobeanus, 89 
foersteri, 121 
foliosus, 179 
forbesii, 62 
fordii, 126, 127 
formosus, 75 
formosus crassispinus, 75 
foveolatus, 98 
fricii, 188, 189 
froehlichianus, 203 
fuscus, 99 
galeottii, 168 
gayanus, 98 
gayanus intermedius, 98 
geissei, 177 
geissei albicans, 177 
gemmatus, 66 
gerardii, 147 
ghiesbrechtii, 185 
gibbosus, 152, 158 
gibbosus celsianus, 158 
gibbosus cerebriformis, 158 
gibbosus chubutensis, 158 
gibbosus fennellii, 158 
gibbosus ferox, 158 
gibbosus leonensis, 158 
gibbosus leucacanthus, 158 
gibbosus leucodictyus, 158 
gibbosus nobilis, 158, 159 
gibbosus platensis, 163 
gibbosus pluricostatus, 158 
gibbosus polygonus, 158 
gibbosus schlumbergeri, 158 
gibbosus typicus, 158 
gibbosus ventanicola, 158 
gigas, 179 
gilliesii, 75 
gilvus, 136 
glabrescens, 180 
gladiatus, 119, 120, 123 
gladiatus intermedius, 119 
gladiatus ruficeps, 119 
glaucescens, 137 
glaucus, 143, 213 
globosus cristatus, 158 
gracilis, 209 
gracillimus, 209, 211 
graessneri, 205 
grahlianus, 209 
grahlianus adustior, 209 
grandicornis, 114 
grandicornis fulvispinus, 114 
grandicornis nigrispinus, 114 
grandis, 167, 169, 171 
griseispinus, 122 
grossei, 190 
grusonii, 167, 168 
grusonii azureus, 168 
guerkeanus, 154, 155 
guyannensis, 98 
haageanus, 77, 170, 185 
haematacanthus, 147 
haematanthus, 57 
haematochroanthus, 145 
hamatacanthus brevispinus, 145 
hamatacanthus longihamatus, 145 
