Cabbage, 34. 
Cactaceer, “55. 
Cactus Family, 55. 
Cakile, 35. 
Calla, 103. 
Calamagrostis, 124. 
Calamagrostis Pickeringii, 12, 124. 
Calicium, 155. 
Calliblepharis, 159. 
Callithamnion, 161. 
Callitrichacesx, $8. 
Callitriche, 93. 
Calluna, 72. 
Catopogon, 109. 
Calothrix, 167. 
Caltha, 30. 
Calystegia, 85. 
Camelina, 34. 
Campanula, 70. 
Campanulacee, 70, 
Campanula Family, 70. 
Canada Thistle, 68. 
Canadian Burnet, 48. 
Canary Grass, 129. 
Cannabis, 95. 
Canoe Birch, 98. 
Caprifoliacee, 58. 
Capsella, 34. 
Caraway, 56. 
Cardamine, 33. 
Cardinal Flower, 70. 
Carex. 118, 169. 
Carpet-weed, 39. 
Carrion Flower, 110. 
Carrot, 56. 
Carum, 56. 
Carya, 96. 
Caryophyllacee, 37. 
Cashew Family, 42. 
Cassandra, 72. 
Cassia, 47. 
Castagnea, 164. 
Castanea, 97. 
Castilleia, 80. 
182 
Catalpa, 77. 
Catchfiy, 38. 
Catnip, 82. 
Cat-tail, 103. 
Cat-tail Family, 103. 
Caulophyllum, 81. 
Ceanothus, 43. 
Celandine, 32. 
Celastraceex, 43. 
Celastrus, 43. 
Celtis, 94. 
Centaurus, 67, 68. 
Cephalanthus, 60. 
Ceramiee, 161. 
Ceramium, boi. 
Cerastium, 38. 
Ceratodon, 138. 
Ceratophyllaceex, 93. 
Ceratophyllum, 93. 
Cetraria, 149. 
Cheetomorpha, 167. 
Chainzcyparis, 101. 
Chantransia, 162. 
Chara, 147. 
Characee, 146. 
Charee, 147. 
Charlock, 35. 
Cheat, 127. 
Checkerberry, 72. 
Chelidonium, 32. 
Chelone, 78. 
Chenilla, 158. 
Chenopodiacee, 89, 90. 
Chenopodina (Sueda), 90. 
| Chenopodium; 89. 
Cherry, 48. 
Chervil, 19, 57. 
Chess, 127. 
Chestnut, 97. 
Chestnut Oak, 97. 
Chickweed, 38. 
Chiloscyphus, 145. 
Chimaphila, 74. 
Chinese Sumach, 42. 
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