INDEX. 
The index includes references to orders, genera, and common names. Ordinal 
names are printed in SMALL CAPS; Synonyms in italics. 
Page Page Page 
ACANTHACES .--.-------5+ 319 | Beard-tongue........-..--- 307 | Button-bush ........------- 160 
Acanthus family .-....------ 319 | Bedstraw .......----------- 162 | Button-snakeroot.....---.- 182 
Acerates ...------62250205° 267 | Beggar-ticks........--....- 223 | Button-weed..............- 161 
Acerates ...-.-----2+225-* 265 | Bell-flower..-.--..--------- 252 
Achillea ......------------- 239 | Bellis.........-....---+---- 191 | Cacalia ......-...-..--+---- 242 
Aciphyllaea .-...-------++-- 236 | Berlandiera......-.....---- 206 | Cachimilla..........--..... 201 
Actinella ...-.-..---------- 231 | Bidens.........--- Leneeeeee 993 | Calamint ..........-.------ 335 
Actinomeris ..-.-----+----- 221 | Bigelovia...... ‘Le eeeeeeeeee 185 | Calamintha............---- 335 
Agassizia ...-.-.+---+---+-- 233 | BIGNONIACEH...-..-------- 318 | Callicarpa.......-.-------- 330 
Aldama ....--------+++---- 213 | Bignonia family ..-----.--- 318 | Calophanes .......-..------ 321 
Amblyolepis....----------- 232 | Bindweed ...----.---.----+ 292 | Calystegia .........-------. 292 
Ambrosia. .-.-.--+++----++- 209 | Bird-pepper ......--------- 299 | Campanula.........-...--- 252 
American cowslip.....---- 255 |. Bitter-weed.............--- 210 | CAMPANULACEZ ......----- 252 
Amphiachyris ...---------- 184 | Black haw..-.-.------------ 156 | Campanula family ......-... 252 
Amsonia.-..-.----.-++------ 262 | Black-root ..........------- 201 | Capraria.............------ 312 
Aanacahuita -..---.--- ...-. 283 | Bladderwort......-..--.--- 317 | CAPRIFOLIACER ........... 155 
Anaqua ......-------++---- 283 | Bladderwort family. ..-..-. 317 | Capsicum.........--------- 299 
Anisacanthus -...--------- 323 | Blazing-star ......-.------- 182 | Cardinal flower......-..--. 251 
Antennaria......---------- 202 | Blephilia .....--..-...----- 340 | Carlowrightia ...........-- 323 
Anthemis ..--.-.--.------- 239 | Blue-curls ........--------- 332 | Carminatia.........--.-... 180 
Antiphytum ..-..-..++++--- 286 | Blue-hearts........---- .... $13 | Carpochete.........--.---- 181 
Antirrhinum ---....-.-.--- 306 | Boltonia.......-....------- 193 | Castilleia..........-..----- 315 
Aphanostephus....-------- 191 | Bonamia ..---.--..++--+--- 293 | Catalpa.....-.-..--.--.---- 318 
Aphyllon.........--------- 316 | Borage family .-...-.-.----- 282 | Cayenne pepper ..-..-.-.--. 299 
Aplopappus ....-....------ 186 | BORAGINEZ.....-.--------- 282 | Cedronella..........--...-. 340 
Aplopappus ....--+---++---- 241 | Borreria ......+.-------++-- 161 | Centaurea ............----- 244 
APOCYNACES. ...-------++5 261 | Borrichia.............----- 216 | Centaury ...........+------ 273 
Apocynum .........--.---- 262 | Bouchea......--.------++-- 326 | Centunculus.............-- 256 
APOgon.....---------eeeees 246 | Bouchetia .......-.-------- 304 | Cephalanthus.........-.... 160 
Arbutus ......-.--.--2..--- 253 | Bouvardia.........-------- 158 | Cestrum........-.--------- 302 
Arctium........----------- 242 | Bradburia ......---..------ 185 | Chaetopappa........---.--- 192 
Arrow-wood......-.----- 156,201 | Brazoria.......-----+---+-+ 342 | Chaffweed .......-...-.-.-+ 256 
Artemisia ...-.........++-- 239 | Breweria .....-.-.----- ..-- 293 | Chameesaracha ...,...-.---. 299 
ASCLEPIADES ......------- 263 | Brickellia ..............--- 180 | Chamomile ............--.- 239 
Asclepias.......------+---- 265 | Brooklime ......-.-----.--- 312 | Chapote .........--...-.--- 257 
Asclepiodora .......------- 264 | Brook-weed..-..----.------- 256 | Chaptalia.........-.-.----- 245 
Ash .....-.---- eee e ee eee ee 259 | Broom-rape.............-.- 316 | Chilopsis...............-.. 319 
ASteDr. .... 55.202 - eee ee ee eee 194 | Broom-rape family........: 316 | Chiltapin .......-.---.----- 299 
Azalea.......------ 22-2205 253 | Browallia.....-.-.--------- 304 | Chionanthus .....--..---.- 260 
FC) 254 | Buchnera.......-.---.----- 313 | Chrysactinia ...----------- 235 
Buckthorn.........-------- 257 | Chrysopsis ..-....-.--.---- 185 
Baccharis .--..--..---+.--- 200 | Buddleia..........-.....--- 272 | Oirsiwm .....-------- eee eee 243 
Bahia........-------------- 228 | Bumelia ..-..-.-.---------- 256 | Citharexylum ......--..... 329 
Baileya.......--------+---- 226 | Burdock........----------- 242 | Clappia...... ance eee eeeeees 225 
Bartlettia............------ 240 | Bur-marigold ....-..------- 223 | Cleavers.......------------ 162 
Basil ......-.....---+---+-- 334 | Butterfly-weed ......------ 265 | Climbing hemp-weed ...---. 176 
Bastard pennyroyal........ 332 | Butter-weed ........---- 198, 241 | Clotbur........0...------5- 210 
Vil 
