248 
Echinocactus—continued. 
thrincogonus elatior, 97 
tortuosus, 195, 196 
tortus, 185 
towensis, 158 
treculianus, 144 
tribolacanthus, 123 
tricornis, 218 
tricuspidatus, 117 
trifurcatus, 123 
trollietii, 150, 151 
tuberculatus, 170 
tuberculatus spiralis, 170 
tuberisulcatus, 202, 203 
tubiflorus, 67 
turbinatus, 66 
turbiniformis, 106, 107 
uncinatus, 146 
uncinatus wrightii, 146 
- undulatus, 117 
unguispinus, 150, 151 
uruguayensis, 162 
valparaiso, 98 
vanderaeyi, 136 
verutum, 181 
victoriensis, 136 
villiferus, 181 
villosus, 103 
villosus crenatior, 103 
violaciflorus, 114, 115 
viridescens, 135, 140, 141 
viridescens cylindraceus, 129 
viridiflorus, 17 
visnaga, 167, 170, 171 
weberbaueri, 103 
wegeneri, 122 
weingartianus, 206 
whipplei, 167, 213 
whipplei nanus, 213 
whipplei spinosior, 213 
wilhelmii, 181 
williamsii, 83, 84, 85 
williamsii lewinii, 85 
wippermannii, 111 
wislizeni, 123, 127, 128 
wislizeni albispinus, 127 
wislizeni albus, 129 
wislizeni decipiens, 127 
wislizeni latispinus, 128 
wislizeni lecontei, 129 
wislizeni phoeniceus, 129 
wislizeni purpureus, 128 
wrightii, 146 
xanthacanthus, 230, 231 
xeranthemoides, 167, 173 
xiphacanthus, 114 
Echinocereanae, 3-77 
Echinocereus, 3-44, 45, 48, 60, 104, 146, 150, 202, 211, 212 
acifer, 4, 12, 13, 14 
acifer brevispinulus, 12 
acifer diversispinus, 12 
acifer durangensis, 12 
acifer tenuispinus, 12 
acifer trichacanthus, 12, 13 
adustus, 5, 23, 24 
aggregatus, 14 
amoenus, 5, 33 
baileyi, 3, 5, 26, 27 
THE CACTACEAE. 
Echinocereus—continued. 
barcena, 43 
barthelowanus, 5, 41 
berlandieri, 20, 21 
bertinii, 45 
bicolor, 43 
blanckii, 5, 20, 21 
blankii, 20 
bolansis, 40 
boliviensis, 43 
brandegeei, 5, 34 
caespitosus, 25, 26 
caespitosus castaneus, 25 
caespitosus major, 25 
candicans, 28 
carnosus, 36 
centralis, 149 
chloranthus, 4, 16 
chlorophthalmus, 5, 32 
cinerascens, 5, 23 
cinerascens crassior, 23 
cinnabarinus, 54 
cirrhiferus, 23 
cirrhiferus monstrosus, 23 
claviformis, 43 
coccineus, 4, 13, 14 
conglomeratus, 5, 32, 39, 40 
conoideus, 4, 11, 13 
ctenoides, 5, 19, 20 
dahliaeflorus, 44 
dasyacanthus, 5, 18, 19, 31 
degandii, 19 
delaetii, 4, 6 
deppei, 23 
dubius, 5, 39 
durangensis, 12 
durangensis nigrispinus, 12 
durangensis rufispinus, 12 
ehrenbergii, 5, 41 
ehrenbergii cristatus, 42 
emoryi, 127 
engelmannii, 5, 38 
engelmannii albispinus, 38 
engelmannii chrysocentrus, 38 
engelmannii fulvispinus, 38 
engelmannii pfersdorffii, 38 
engelmannii robustior, 38 
engelmannii variegatus, 38 
engelmannii versicolor, 38 
enneacanthus, 5, 36, 39 
enneacanthus carnosus, 36 
fendleri, 5, 9, 14, 35, 36, 37, 40 
fitchii, 5, 30 
flavescens, 212 
flaviflorus, 15, 21 
galtieri, 43 
glycimorphus, 23 
gonacanthus, 10 
grahamii, 43 
grandis, 4, 18 
havermansii, 43 
hempelii, 5, 34, 35 
hexaedrus, 10 
hildmannii, 36 
huitcholensis, 4, 8 
inermis, 14, 32 
jacobyi, 35 
knippelianus, 5, 32 
