Echinocactus—continued. 
macrodiscus decolor, 139 
macrodiscus laevior, 139 
macrodiscus multiflorus, 139, 140 
malletianus, 100, 177 
mammillarioides, 138, 203, 204 
mamnunillifer, 122, 137 
mamillosus, 180 
mammulosus, 200 
mammulosus cristatus, 200 
mammulosus hircinus, 200 
mammulosus minor, 200 
mammulosus pampeanus, 200 
mammiulosus spinosior, 200 
mammulosus submammulosus, 200 
mammulosus typicus, 200 
marginatus, 85, 86, 87 
marisianus, 105 
martinii, 189 
mathssonii, 144 
mcedowellii, 151 
megalothelos, 87, 162 
melanacanthus, 186 
melanocarpus, 161, 162 
melanochnus, 86 
melmsianus, 117 
melocactiformis, 138, 139 
melocactoides, 224 
meonacanthus, 224 
merckeri, 180 
micracanthus, 180 
micromeris, 93 
microspermus, 176, 207, 208 
microspermus brevispinus, 208 
microspermus elegans, 208 
microspermus erythranthus, 208 
microspermus macrancistrus, 207, 208 
microspermus thionanthus, 208 
mihanovichii, 153, 154 
minax, 169 
minax laevior, 169 
minusculus, 45, 46, 176 
minusculus cristatus, 46 
mirbelii, 185 
mirbelii ornatus, 185 
misleyi, 73 
mMitis, 191 
molendensis, 201 
montevidensis, 180 
monvillei, 155, 161 
mostii, 158 
muehlenpfordtii, 104 
multangularis, 142 
multicdstatus, 111 
multiflorus, 155, 156, 159 
multiflorus albispinus, 159 
multiflorus hybopleurus, 159 
multiflorus parisiensis, 159 
multiplex, 64 
muricatus, 194, 195 
muricatus hortatani, 196 
mutabilis, 177 
myriacanthus, 101 
myriostigma, 182, 183 
myriostigma amabile, 183 
myriostigma amabilis, 183 
myriostigma amoenus, 183 
myriostigma bedinghausi, 183 
INDEX. 
Echinocactus—continued. 
myriostigma bedinghausii, 183 
myriostigma beguinii, 183 
myriostigma bellus, 183 
myriostigma candidus, 183 
myriostigma cereiformis, 183 
myriostigma cinerascens, 183 
myriostigma cinerascens brevispinus, 183 
myriostigma cinerascens crassispinus, 183 
myriostigma cinerascens longispinus, 183 
myriostigma cinerascens parvimaculatus, 183 
myriostigma columnaris, 182, 183 
myriostigma conspicuum, 183 
myriostigma conspicuus, 183 
myriostigma cornutus, 183 
myriostigma cornutus candidus, 183 
myriostigma crenatus, 183 
myriostigma darrahii, 183 
myriostigma delaeti, 183 
myriostigma diadematus, 183 
myriostigma elegantissimus, 183 
myriostigma erectus, 183 
myriostigma formosus, 183 
myriostigma gardei, 183 
myriostigma glabrescens, 183 
myriostigma hanburyi, 183 
myriostigma hybridus, 183 
myriostigma imperiale, 183 
myriostigma imperialis, 183 
myriostigma incanus, 183 
myriostigma incomparabilis, 183 
myriostigma inermis, 183 
myriostigma insignis, 183 
myriostigma jusberti, 183 
myriostigma lapaixi, 183 
myriostigma lapaixii, 183 
myriostigma laurani, 183 
myriostigma lesaunieri, 183 
myriostigma lophothele, 183 
myriostigma lophothele cereiformis, 183 
myriostigma martini, 183 
myriostigma mirabile, 183 
myriostigma mirabilis, 183 
myriostigma nobilis, 183 
myriostigma nudus, 182, 183 
myriostigma octagonus, 183 
myriostigma octogonum, 183 
myriostigma pentagonus, 183 
myriostigma pictus, 183 
myriostigma princeps, 183 
myriostigma quadratus, 183 
myriostigma rebuti, 183 
myriostigma regale, 183 
myriostigma regalis, 183 
myriostigma regulare, 183 
myriostigma regulare spinosum, 183 
myriostigma robustum, 183 
myriostigma schilinskyi, 183 
myriostigma schilinzkyi, 183 
myriostigma schumannii, 183 
myriostigma speciosus, 183 
myriostigma spectabilis, 183 
myriostigma spiralis, 183 
myriostigma splendidus, 183 
myriostigma variegatus, 183 
myriostigma weberi, 183 
myriostigma zonatus, 183 
napinus, 191 
245 
