INDEX 
OF THE 
NATURAL ORDERS AND GENERA. 
x* The names of the Orders are in Capitals.—Suborders are marked with the (+), and Sections with 
the (*).—The Tribes are in Roman spaced,—the Genera in Roman,—and the Synonyms in Italic. The 
figures after Syn. refer to the Synonyms of the Genus next above. 
Abies, . .  . 515)Amphicarpza, . 223) Arundo. - _ . 610|Brachystemum, . 420 
Abietiner. - 514|Amphiotis, . . 306 Syn. 601|Brasenia, aisle shin Mees 
eri : ° + 209] Amsonia, F . 457) Asarum 465 | Brassica, 171 
Acalyp - 488|/t Amygdalee, : 240| ASCLEPIADACES. 458|Briza, . 616 
ACANTHACER, | 395|Amygdalus, . . 242|Asclepias, 458 ” syn. 615, 616 
Acer, Vane 212 Syn. 242 Syn. 461|Bromus, 5 ote Oa 
Syn. 214 ANACARDIACE, 202} Ascyrum, - 182 ; Syn. 619 
ACERACES, - 212) Anagallis, 387|AsparageeR, 555| Broussonetia, . oa 
-Acerates, : . 460] Anchusa, ; - 431 AsDaRAeUs, : . 555|Bryophyllum. . Li 
Acetosa, . : eVatt Syn. 433|Asphodelus, . . 552}Buchnera, é . 407 
Achillea,. .  . 342/Andromeda, .  . 371|Aspidium, . 6283)|Buchneree, . 407 
Achyranthes, . . 185 Syn. 373 Syn. 631|Bunias, . . . Ii 
Acnida, . - - 467| Andropogon, . 621|Asplenium, . 630|Bupleurum, - 286 
_ Aconitum, -  . 1464/Andropogonege, 621 Sy nm. 632|Buxus, . 489 
Acorus, . z . 521]/Anemone, & . 139] Aster, z 2 318-395 CABOMBACEE. 3 
Acrostichum, . . 628 Syn. 141, 148 Syn. 325, 326, 327, 329|Cacalia, . > 348 
Actea, . .  . 146|Anethwm, . , 290|Asteroidee. 318 CACTACE, - 274 
Syn. 147| Angelica, 290, 291] Astragalus, 229| Cactus, : «, 20 
Actinomeris, . . 344)Anona, . 151| Atheropogon, . 618|}+ Cesalpine, . 236 
Syn. 347 ANONACE, 151| Atragene, 139}Cakile, . ot yo SL 
Adenarium, . - 189| Anonymus, 484| Atriplex, 467| Caladium, : - 520 
Adiantum, . 633) Antennaria, 351| Atropa, Z . 449|Calam “A - 60L 
Adlumia, . 158|Anthemis, .  . 342 Syn. 446|Calend +25 ee BOS 
Adonis, . M1 Syn. 342} AURANTIACE, 204|Calla, : Z . 520 
Aeschynomene, . 230|/|Anthericee, . 552}/Avena, - 609 Calliopsis, 345, 346 
ZEsculus, é . 214)Anthoxanthum. . 608 Syn. 609, 610|Callistephus. . wu, Bee 
Z£thusa, A - 289) Anthropogon, . 6lsj;A veneer, . 608}|\CALLITRICHA- 
Agathyrsus, . . 359/Antirrhinee, 398| Avicularia, - 474, CES, .. > 484 
Agave, .  . 539] Antirrhinum, . . 398|Azalea,_ . . 374 Callitriche, 484 
Agrimonia, = 255 Syn. 398 Syn. 375, 376, 377| Calopogon, eae 
Agropyron, . 619| Anychia, . . 185|Azolla, : . 636/Caltha, . - 143 
Agrostemma, . 191,192|Apargia,. .  . 358|Baccharis, apo CALYCANTHA- 
Agrostidee, 596] Apios, : 222 Syn. 334} CEA, . é « 28 
Agrostis, A s . 596; Apium, EB . 288] Ballota, - 428 Calycanthus, 3 fee 
Syn. 599, 600, 601 cays 289 BALSAMIFLU &, 507|Calypso, . : - Sal 
Ailanthus, F . 202) Aplectrum, 531 BALSAMINACES, 199|Calystegia, . - 443 
i : i 608 APOCYNACES, 456|Baptisia, . 235|Camelina, - 163 
Syn. 609, 613|Apocynum, . 456| Barbarea, - 165|Camellia, - 205 
Ajugoidege, - 429 AQUIFOLIACER, 381| Bartonia, 268, 454|Campanula, . 365 
_ 7 e : 208} Aquilegia, 145| Bartsia, . . 409, 410 Syn. 366, 367 
Aletris, . ~ 541| Arabis, 1466| Batatas, . 442, 443} CAMPANULACES, 365 
Alchemilla, 257 Syn. 162, 169| Batschia, 433|t Campylosperme, 292 
isma, . 526;ARACEX, . . 519] Bezonia, 270|* Cannabiee, . F a 
ALISMACE. | 526|Aralia, 294] BEGONIACE, 269| Cannabis, 
Allium, .. 550|/ ARALIACES. a94|Bellis, .  . 327|CAPPARIDACEE, if 
Alnus, . . 499| Arbutus, . 3 371|Benzoin, . - 478) Capraria, 402 
opecurus, 601| Archangelica, . 290 BERBERIDACE®, 152| CAPRIFOLIACER, 298 
Alsine, . 187| Archemora, 291| Berberis, . 152| Caprifoliwm, 298, 299 
Alsinee, 187| Arctium, 357| Beta, 470|Capsella, . aeul6L 
Althea, 207| Arctostaphylos, 371 Betula, . 498|Capsicum, 447 
Alyssum, - _. 163|Arenaria, . - 188 Syn. 499|Cardamine, .  . 167 
. 162 Syn. 186,189} BETULACEM, . 497 Syn. 169 
AMARANTHA.” Arethusa, ‘ . 535] Bidens, - 346|/Cardiospermum, 215 
CEX, . 470 Syn. 535| Bigelovia, 334| Cardwus, 356, 357 
Amaranthus, ‘ - 470) Argemone, . 156| Bignonia, . 394, 399|Carex, . 576 
ee ADS Aristida, | 595 BIGNONIACER, 393;Cariceer, 576 
CE - 538] Aristolochia, . 465| Bistorta, 475 |Carpinus, P . 497 
yeni : 538 ARISTOLOCHIA- Blephilia, 418|Carthamus, . . 354 
Amberboa, 354] CER. . 465|Blitum, 468|Carum, . . . 238 
Ambrosia, - » 2353) Aritenewm, 538| Bebera, 347|Carya, . 491 
Amelanchier, . 245|Armeniaca, 242 Behmeria, 511 CARYOPHYLLA- 
Amellus, . 333! Armeria, 390| Boltonia, 328] CEA, . 
Amianthum, 558| Arnica, 335] Bootsia, 252 Cassandra, 372 
Ammannia, . pos Aronia, F 245, 246|Borrage®e, . . 430) Cassia, ; . 236 
Ammi, . 286|Arrhenatherum, . 609})BORRAGINACES, 429) Cassiope, : Posy | 
aig z < pL Artemisia, P . 349] Borrago, . 431|/Castanea, ‘ . 495 
5 ed ; 225| Arum, 519| Botrychium, 635| Castilleja, A . 409 
elopsis, . 212 Syn. 520| Brachyelytrum, 600'Catalpa, . . 394 
54* 
