INDEX. 



Acacias, 50, 173. 



Aconite, winter, 93, 94. 



Adaptation, 204. 



Agave, Mexican, Century 

 Plant," 186. 



Air, food furnished by, 14. 34 



Alder, 131. 



Algae, 207. 



Amaryllids, 113. 



Anemones, 71, 153. 



Angelica, 138. 



Animals, agency of, in seed dis- 

 tribution, 12; necessity of 

 plants to, 14. 



Annuals, 51, 176. 



Anthers, 80. 



Apple, 156, 179. 



Arrowhead, 108, in. 



Artichoke, 144. 



Arum, common, 71, 120; white, 

 " calla lily," 123. 



Ash, proportion in wood, 3^. 



Ash, 150. 



Asparagus, 113. 



Asphodel, 113, 136. 

 Aster, 145, 146. 



B. 



Bachelors' buttons, 93. 

 Bacilli, 208. 

 Bacteria, 208. 

 Balsam, garden, 152. 

 Bamboos, 133, 178. 

 Banana, 157. 

 Barberry, 156. 

 Bark, 68, 176. 

 Barley, 133. 

 Bean, 97. 

 Beech, 132, 187. 



Bees, colony system of, 77. 

 Beets, 160. 

 Begonias, 106. 

 Birch, 132, 150. 

 Birdsfoot-trefoil, 98. 

 Birds, as an agent in the fer- 

 tilisation of flowers, 102. 

 Blackberry, 155. 

 Bladderwort, 68. 

 Bracts, 143. 

 Branches, 161. 

 Breadfruit, 157. 

 Broom, 97, 173. 

 Broomrape, 180. 

 Budding, 51. 

 Bulbs, 52. 

 Burdock, 144. 



Burnet, great, 128; salad-, 126. 

 Bur-reed, 129. 

 Buttercup, 71, 89, 149. 



c. 



Cactus, 50, 183, 199- 



Calla lily, 123, 148. 



Calla, marsh-, 123. 



Calyx, 83, 128. 



Campion, red, 30, 31, 83; white, 



Canterbury bell, 98. 



Carbonic acid, food of plants, 



14, 34, 59- 



Carnivorous plants, 63. 

 Carpel, 79, 80, 94, in. 

 Carrot, 138, 145. 

 Catchflies, 65. 

 Catkins, 130, 148. 

 Celandine, lesser, 71, 93, 198. 

 Celery, 138. 

 Cells, plant, 26, 172. 

 Cellular plants, 206. 



215 



