GENERIC INDEX. : 
Abutilon, 182, 270. . vf 
Acacia, 222. 
Acer, 88. 
Achyrodes, 382. 
Aconitum, 275, 500. 
Actinomeris, 500. 
Adiantum, 536. 
4Esculus, 536. 
Agaricus, 87, 499. 
Agave, 237. 
Ageratum, 403, 406. _ 36 
Alectoria, 390. 
Aleyrodes, 538. ' 
_ Alliaria, 497. 
Alnus, 76, 160. 
Amaranthus, 327, 418. 
Amblystegium, 268, 273, 317- are 
Amorpha, 17, 136. f 
Ampelanus,’314, 461. 
Amygdalus, 17, 373. 
Anacharis, 400. 
Andromeda, 54, 64. 
Anemone, 22. 3 { 
Aneura, 489. 
Andropogon, 128, 223. 
Anhalonium, 315. 
Anomodon, 268. 
Anonymos, 22, 23. 
Antennaria, 47, 265. 
Antirrhinum, 275. 
Aphanorhegma, 199, 199. 
Aplopappus, 236, 
Aquil egia, 46. | 
Aralia, 545 55> 63, 64, 133- 
Arctostaphylos, 277, 500. 
Arcyria, 186. 
Ardisia, go. 
» 311, 312,536. 
lepias, 24, 236. 
Pidium, 270, 271, 537. 
; pal oes pe 15, 21, 88, 256, 270, 271, 498, 499- 
yas » 89, 120, 121, 236, 274, 311, 464. 
| Ceratiomyxa, 413. 
Betula, 499, 537- 
Beurera, 174, 175- 
Beveria, 174. 
Biatora, 392, 393, 394- 
Bidens, 47, 274, 497: 
Boerhaavia, 46. 
Boisduvallia, 48. 
Bolbopodium, 233. 
Boletus, 235. 
Brachymenium, 38r. 
Brachythecium, 317- 
Brasenia, 308, 309. 
Brassica, 77. 
Bredemeyera, 273. 
Bruchia, 272, 343, 416. 
Brunella, 47. 
Brunnichia, 131, 132, 134, 237- 
Bryopteris, 383, 465. 
Bryoziphium, 409. 
Bryum, 185, 192, 267. 
Buellia, 393. 
Bulbostylis, 29. 
Bumelia, 276. 
ursa, 76, 186. 
Butneria, 173, 174- 
Biittneria, 173, 174, 175, 275- 
Buxbaumia, 38, 39, 49, 135- 
Byttneria, 173. 
Cactus, 315. 
Calamintha, 40. 
Calochortus, 47, 135, 416. 
Calycanthus, 174, 175, 464- 
Camptosorus, 21, 536. 
Cantherellus, 235. 
499 
Carex, 122, 123, 
Carpites, 479. 
184, 208, 313 464. 
Castanea, 261,262,316. 
263, 264, 316, 382. 
Caulinites, 63. 
Ceanothus, 46, 381. 
Cedrela, 499. 
Cedronella, Fi $3- 
Celastrophyllum, 58, 59, 64. 
Coa oe 
Ceratodon, 
Cercis, 318. 
Gerebella, 127, 128, 234. 
Cobain os 
Checiuctn its 
yphora, 235. 
scheint 167,272, 
gent fe 
