236 



GEOLOGY OF OHIO. 



Ascyron, 260. 

 Asimina, 408. 

 Asparagus, 493. 

 Asprella, 592. 

 Aster, 12. 

 Astragalus, 309. 

 Atriplex, 435. 

 Avena, 567. 

 Azalea, 205. 



Balsamiuaceae, LXI. 

 Baptisia, 299. 

 Barbarea, 359. 

 Bartonia, 177. 

 Benzoin, 386. 

 Berberidaceae. IyXXIX. 

 Berberis, 388. 

 Betula, 465. 

 Betulaceae, CI. 

 Beurera, 384. 

 Bicuculla, 375. 

 Bidens, 32. 

 Bignoniaceae, XV. 

 Bignonia, 127. 

 Blephilia, 98. 

 Boehmeria, 457. 

 Boltonia, 10. 

 Borraginaceae, XII. 

 Bouteloua, 559. 

 Brachyelytrum, 556. 

 Brasenia, 414. 

 Brassica, 369. 

 Brauneria, 26. 

 Bromus, 587. 

 Bruuella, 102. 

 Buchnera, 147. 

 Buda, 428. 

 Bursa, 370. 



Cacalia, 46. 

 Cactaceae, XI* 

 Cakile, 373. 

 Calamagrostis, 563. 

 Calamintha, 94. 

 Calla, 526. 

 Callirrhoe, 263. 

 Callitrichaceae, LV. 

 Callitriche, 284. 



Calopogon, 482. 

 Caltha, 398. 



Calycanthaceae, LXXVI. 

 Calycanthus, 384. 

 Camassia, 500. 

 Camelina, 368. 

 Campanula, 62. 

 Campantilaceae, II. 

 Cannabaceae, XCVIII. 

 Cannabis, 452, 

 Capparidaceae, LXXII. 

 Caprifoliaceae, VII. 

 Capriola, 570. 

 Capsella, 370. 

 Cardamine, 362. 

 Cardiospermum, 277. 

 Carduus, 48. 

 Carex, 539. 

 Carpinus, 464. 

 Carum, 217, 

 Carya, 470. 



Caryophyllaceae, LXXXV. 

 Cassandra, 198. 

 Cassia, 321. 

 Castalia, 416. 

 Castanea, 460, 461. 

 Castilleia, 151. 

 Catalpa, 128. 

 Caucalis, 235. 

 Caulophyllum, 389. 

 Ceanothus, 271. 

 Celastraceae, 1,1. 

 Celastrus, 274. 

 Celtis, 453. 

 Cenchrus, 544. 

 Centaurea, 50. 

 Cephalanthus, 76. 

 Cerastium, 423. 

 Ceratophyllaceae, LXXXIII. 

 Ceratophyllum, 413. 

 Cercis, 322. 

 Chaeraphis, 543. 

 Chaerophyllum, 224. 

 Chamaedaphne, 198. 

 Chamaelirium, 501. 

 Chelone, 138. 

 Chelidonium, 383. 

 Chenopodiaceae, LXXXIX. 

 Chenopodiuru, 436. 

 Chimaphila, 208. 

 Chiogenes, 605. 

 Chionanthus, 181. 

 CUrysosplenium, 348. 



