Page. Page. 
Echinocactus laticostatus ........--.-.+---- 359 | WNchinospermum deflexwm americanum... 170,515 
limitus.....-....-----.2--2- 02. -eeeee 374, 381 floribundum. ....--.22.222eeee cence eee eee 515 
lindheimert..-.... 0... e022ee eee ee eee «. 359 lappula 2.2... .2022eceeeeeeeceeccceceee- 942 
lon JIMAMALUS .-. eee eee seen eee ee eee ee 365 leiocarpum... 2... .00eceeeeeecececeeees 949 
brevisp UNUB eee cence eee ete tenes 366 redowskii cupulatum ........2.2--022--- 242 
e seveili, m UB one en nsecncennceonscoes see occidentale .....2..2.2022--2-2---- 170, 515 
NN A eee : LCRANUIN 2. eee eee eee eee eens cence eee 242, 549 
mubhlenpfordttt ........0000eeeeeeeeecees 370 1 . - . 
re : Hdosmia ga@irdneri.....222.2.002.0-0002 eee 501 
myriostigma ........--.-.-.2.----+----- 360 Elateri 1 . 1 3] 
oreuttli ..... Lecce ee eee eee eee eee eee 373, 381 | | MCP LONBISEPANIM « «+++ see seen ees ss 8 
nea Elder... 2.2.22... 02.22 eee cece cee e eee ence 329 
papyracanthus.........-...2...222.-- 376, 381 
-_ on Elivagnaces® 2.2.0... .....20202 222 e eee 249, 521 
Parryi.....---.. ee eee eee eee eee eee ee 358 . 
: - | Eleagnus argentea......2.2.....0.......- 521, 521 
pectinatus. .....--..02- 22 eee eee eee 385 , . . . 
. og, | Eleocharis acicularis..............-..---- 184, 257 
pectintferuUs oo... cece cece cece eee eeeeeee 3R5 . . 
. acuminata ......... 2. eee eee eee 527 
peninsulie. .....2222..02..02---2------ 361, 380 . 
. a | OVata - 2. eee ee eee eee eee eee eee 257 
phyllacanthus ......-.....---..-------- 371 | : - 
ays | palustris. ...........22-22....22-.- 184, 257, 527 
piliferus.. 02... cece ee eee eee eee 364 
. glaucescens ...-...--...------------ 184 
pilosus.......... 2.2.2... 0 eee eee ee eee 364 . 
. . . WALBONL ..--- oe eee eee eee eee eee eee 347 
pringlei.......-...--..--..-2-.-2+-- 365 oe, 957 
polyancistrus ......-..--.....-------- 367, 38L Py gma Toes s esses eececeessrocrsrrsessss ~ 
_ watsonl ........2...-.222222 eee ee eee: 347 
polycephalus.........-.-------------- 357, 380 vas 
: . Elionurus. .........---.2---2--. eee ee eee eee 2,6 
xeranthemoides....-..-----..-.-- 358, 381 : : ’ 
+ barbiculmis -..............-------. seers 7 
0 es 1 373 . ; 
os tripsacoides.... 2.2.2... ce eee eee eee eee 7 
pubispinus...................0..-02-- 369, 381 El hit 471.474 
scheerii ........2..2-20-2-2e2e20e00 2+ 369, 381 Lat WIN Gren e soc n enc eseesasccscse sce es ‘ a 
setispinus.........2..2.02-22-0e0eee 2 A 539 
hamatus .........200- eee eee eee ee 370 YMNUS vo eens cece ee cesses sec ec ee eec ec cec es ” 
. AMETICANUS .- 2. ceeeee eee eee eee eee ee, 266 
longihamatus ..........--22--+.---- 365 . 331. 348 
muhlenpfordtii...............---- 370, 381 ATONATTUS --- 2222 eres see ee eens nes oe aa 
canadensis............-..+--+ 193, 266, 533, 555 
robustus...... 0.2.22 e eee eee ee eee ee 369 wae : 
7 glaucifolius ............--.-0.ee000 533 
BECACEUS ©. ee ene ee 370 . . 
. intermedius............---.-2--.--- 193 
SINUALUS.. 2.2 eee eee eee eee eee 369 
ar esp « condensatus.....-....---..ceeeeeeeeeee 266 
D0 CS) op 376, 381 
. : - dasystachys. ........----..-----05------ 533 
SIMpSON] .........------ eee ee eee eee eee 377 vo oe . 
. elymoides ..... 20.2.2. 20ee cece ences 533, 555 
minor .....----------------+------ 377, 381 1 “folk 533 
robustior ........2.2.2..2.2- 377, 380, 381 g reves ONES wa nec ener a neceee eee eceecc nes O66 
sinuatus .......2..........-----0--0-- 369, 381 & AUCUS - coos sees csesesesssessss 
. MACOUNIL. 22... eee ee eee ee eee ee eee 193 
spinosus .....-.......202--22--0 0s - eee 371 ae . 
. “ BUDITICUS. 0222s ee eee eee eee eens 266 
texensis.............2220--00-- eee eee 359, 381 ; 
. . striatus ..... 2. cee ee eee eee eee 193, 533 
treculianus...... 22.2200 e ween eee eee 369 en 
. “ Virginicus .......2...-- ee eee ee eee eee 193, 533 
UNCINATUS ... 22... eee eee eee eee eee 366 Eneelmanni: 538 
wrightii.......2222.022..0.22000e- 366,381 | ““*MSCMAND I 026+ +2 eereeeecr ee corse eee eee ee ° 
unguispinus ..............222..200-22-e B74 | ‘Pinnatifida Taos esse ccesseescersecsreers AG 
viridescens.................22.22----- 361, 381 | Epicampes Tomereeeserccceecccceeerceesecers 9s 58 
cylindraceus......2...2.22020. 020-2: 361 Higulata .-. 2-2. +--+-2--2eeeeeer ee ee ee ee 58 
whipplei ........2.2.0.22000e.eeeee ee 367,381 | THBOMS..------------2e eee eeer eee eee BS 
apinosior....-...--.-----ss--+---- 368, 381 Epilobium adenocaulon cece eee ee ee eee 158, 225, 499 
williamsti.....2...ccceccececeececeees 131, 132 anagallidifolium ---.--------+-----ss«.- 225 
wippermanni cee ee cece eee ence cece cceace 371 angustifolium worse stew ent e ner n nw eae 226, 499 
wislizeni.....2...0...22.00005 .... 363, 380, 381 drammondii....-------oseese+oseeeecees 500 
lecontei .......-...-------.-----+-- 363, 380 franciscanum ....-.--+-+++++-+2e+eer eee oe 
albispinus .......- ae ee eee ee eee eee 364 halleanum pocrocsrcssscscccsccccccccccs 225 
xeranthemotdes...... 222. -220eeeeeeee eee 358 hornemanni crore eessrceesewaerncsnaas 225, 500 
Echinocereus adustus ...2.22--20.0000-0 e000 387 latifolium .........- pe casecceseeacssseas 340 
C@ESpUlOSUS.... 22. 2 ewe eee eee ee eee eens 385 lineare -...-.....--+-------------- 158, 226, 499 
COCCINCUS 2-206. -eeeeeee eee eee eee eee 396 luteum crorrcessrecsscccssccescecccseess 340 
MaSYACANKHUS 22... cece eee eee eee eens 383 minutum ....---+-+++eeeeee sees teense eee 226 
oregonense ....-.-..-----------.-------- 225 
ennNeacanthus... 22.222 e cece eeeee eee eeeee 392 
. palustre .........2 2.222202 0. 22 ee eee eee 340, 499 
pectinatus......-..-2--22-2 2-2 385 . 
paniculatum.............--.---------- 226, 500 
polyacanthus.....--.2.2.222.eeeeee eee 396 spicatum 296 
TULANS «22 000-- re eeeeeveeeee eee eee eens 387 UFSINUM. . 2.2... eee eee ee eee ee eee eee eee 226 
TUSPINUS . 022s cece eee e ree eee eee 387 | Epipactis convallarivides ..........-..--+++- 252 
triglochidiatus...-....+.2--++++-+-++-+-- 394 gigantea. ......... eee eee ee eee eee eee 252 
viridiflorus.....----------+++--++---++-- 382 | Kquisetacew ....... wee eceeceeeeee 194, 267, 349, 536 
Echinopanax horridum ..........---- 229, 329, 341 | Equisetum arvense.............-..+-- 194, 267, 536 
Echinopsis octacantha ..........-2+06------- 395 hyemale ..............000 eeccccnserencee 267 
