| Bergamot 
Page. 
Antirrhinum....... 2.000222 - ee eee eee eee 292 
AparéjOS GTASS... 0.0.2... ce cece eee neweee 519 
Aphanostephus ..........-....-....-.---- 191 
APH 22... e ees cence ewer e cee ee nneens 401, 402 
Aphyllon .......--..... rr o- 316 
Apiastrum......2...02.. eee eee nese eee eens 145 
APIS .. 2 eee cee cee eee cece cee eeeceneee 87 
Apium. ..... 0.022 eee ee eee eee ee eee ee . 146 
Fs 145 
Aplopappus......... se cnennnecancessccens 186 
A plopApPpPUs .. 2.220 ceecee cnn cceeneeceenne 241 
APOCYNACEAR .. 2-022 eee cece eee eee eee ees 261 
Apocynum .......--.-.-2--- 2-22-2222 eee “262 
A podanthera. .........--.202-- eee eee eeee 124 
APOgon ..-.-0.. 2005.02 0 2 eee eee eee eee eee 246 
250) 0) ce 106 
Aquilegia..........-0.eceee cece cece ee eeee 9 
Arabis . 2.220. c eee cece ee eee cece ecm enee 19 
ARAGCAH . ee eee ee eee ee ee eee eee 452 
Arbutus ...... 020.222.222.222 2 eee eee ee eee 253 
Arceuthobiwm ... 2... 02.020 eee ee eee ee ee ees 384 
Arctium . 2.22.2... 2222 eee eee eee eee 242 
Arenaria........-.0---. 022 ee eee eee eee 30 
AYTGeMoOne -..-. 2-220 eee eee eee eee eee 12 
Argythamnia............00..-00-0e eee eee 401 
AYisiema... 2.2.22 eee ee eee eee eee eee eee 453 
AYVistida 2... 2c ccc cece cece ee ene ences 513 
Aristolochia ......-....-.-----------2--4- 381 
ARISTOLOCHIRA .......---..2.---------+- 381 
Arizona grape .....----......2-..-2------ 62 
Arrow-head.......2.......000 eee ee eee ee 455 
Arrow-leaved tear-thumb............--.. 378 
Arrow-wo0d ......--2-0---..--00--------. 156, 201 
ATLOyO PTAPC .....-.-.2-- 220-2 eee 63 
Artemisia... .....-...... 00002202. eee eee 239 
Arthrocnemum. ..- 22-222 20 2 eee 371 
Arum family....-..------. cece eee e ene eee 452 
Arundinaria .........22. 0-02... eee eee eee 551 
Arund0 .......0 0. eee ee eee ee ewe nee 537 
ATUNGO 20 cece eee ee eee eee 551 
ASCLEPIADEA. ....0.-20200000200-20---04- 263 
Asclepias .....-.--- 2-2-2. cee e ee ee ee eee eee 265 
Asclepiodora........-.----0+ sce eseeeeeeee 264 
ASCYTUM ..2... 0.0.2 eee eee eee eee 34 
0) | 959 
ASPON.~. 220. e ee ee eee eee eee eee nee 419 
ASPICATPA ....-. 262-0 eee ee eee eee ee eee 48 
A Spidiwm . 22-00 ce cence cece eee eee eeeeeee 567 
Asplenium..........--..-2..20..0.00-200- 566 
Asprell. ..- 00.0 ee cece ence ee cee ccw een eeee 551 
0) 194 
Astragalus.......--2-.2.-..02202..00c00ee 82 | 
Astrophyllum ....- 2... cece eee eee eee 53 
Atheropogon 2.0... 2 2c seen sce ee eee cee eens 531, 533 
Atriplex ...... 0.2.20. e eee eee eee eee eee 368 
Australian brome grass........-......... 548 
AVEONS | 22... cece eee eee eee eee eee ecw eee 105 
Ayenia..... 2.22... cece ee eee cee 45 
Azalea ...-..--...ees wecsees Been ence naee 253 
Azolla .....eceeeeeee wees nacnaeenenece eees 559 
Baccharis ........-.--eeeeee seen eee eee as 200 
Bahia... 22... eee ee cece ee cece cece neces 228 
Baileya ......... evcceencccencecs eeeeeeeee 226 
Bald cypress. ...........ccceccceccecceeee 555 
Balloon-vine ............2.-260- eesccccee- 
Balsam apple 
Baptisia.-.. 2.0... ee eee eee eee eens ences 
Barberry..........-02---eeeeeeeeeeee were 
Barberry family -.... oc ennceewccecs erry 
Barley ....---........22.022202-2eeeeee 
Barn grass 
Barren oak... -....---2--2222 eee eee eeeees 
ee as 
ee es 
es 
Basswood 
Bastard pennyroyal......... 
toadflax 
Bean.......-...2.22222.. 
Bean-caper family...... 
Beard-tongue ..... 
Bear grass .. 2.0.2.0... ccc cece eee ee eee eee 
Beaver poison 
Bedstraw .........2-.2-22. 02 2c0c cece eens 
Beech. ..... 22.2... 0.0 een eee cece cree ee 
Beggar-ticks....- 2.0.0... 222. ce eee eeeenee 
Bell tlower 
Bellis 
ee eee 
ee 
ne 
i ee ee 
Berberis ...-2. 022.22. 2 2. cece ceeceeceee oes 
Berchemia 
Bergia ..-.... 2.202.200 cece eee eee enone 
Berlandiera .........2.2....... pomaceseenee 
Bermuda grass .......... 
Bernardia..........0....0.. cece neee eeeee 
Berula ......... eee ewww ssascene oeceee 
Betula ..... eee e eect anes acnnncee - 
Bidens 
Bifora 
ee ee 
ee ee ee wwe 
i 
Bird pepper................--.- 
Birthroot 
RR ee ewe eee ee sees cen wee 
Birthwort.. 2.2.2... cee eee eee cence a 
Birthwort family .............. a secccesee 
Biscutella. . 2.22.2... eee eee eee eee 
Bitter weed ............0000 000222 
BIXINEAR 2... - ee ce eee eee 
Black bindweed...... 22. ....0..0.0.02. a 
cherry -.....-..-.-.eeceeeee eeveces 
Naw - 22 -eeeeeeee ee eee ne woes 
MOSS -- 2-02. ee eee eee eee eee nesses 
CT) 
Oat QTASS..--. 2... eee eee eee eee 
persimmon......... ees sees 
TASPDEITY ....ccccccccccecencnceces 
372 
473 
87, 318 
49 
307 
162 
413, 418 
223 
412 
