Barberry, 157, 193. Bark, 54, 66, 67. Bark-bound trees, 54. Bast, 61, 66. Bean, 20, 28, 39, 194. Berry, 167. Biennial plant, 17. Brace cells, 67. Bracts, 134. Branch, 111. Breeding, plant, 7, 8. Bryophytes, 181. Budding, 127, 128. Bud propagation, 181. Buds, 72, 82, 87, 111; flower, 115; fruit, 115. Burs, 172, 174. Bushes, 191. Cabbage, 113. Callus, 56. Calyx, 133. Cambium, 63, 65. Capsule, 165. Carbohydrate, 95. Carbon, 92. Carbon dioxide, 22, 93, 106. Carnivorous, 99. Carpel, 136. Castor bean, 24. Catkin, 158. Caulicle, 20, 22, 25. Cedar apple, 194. Cell, 42, 63, 145, 176. Chlorophyll, 86, 94, 101, 183, 186. Cladophylla, 100. Cleft graft, 126. Cleft leaf, 75. Cleistogamous, 151. Climbing plants, 129. Clover, 39. Club mosses, 203. Cluster, flower, 155, 159; centrifugal, 156, 159; centripetal, 156; indeterminate, 156. Colonies, plant, 11. Composite flowers, 140. Conjugation, 185. Cork, 66, 67. Corn, 3, 25, 26. Corolla, 133; funnel form, 138; labiate, 138; personate, 139; rotate, 138; salver form, 138. Cortex, 44. Corymb, 159. Cotton plant, 7. Cotyledon, 20. Cryptogam, 176, 180, 183-204. Currant, 157. Cuttings, 121, 123, 124. Cyme, 159, 160. Deciduous, 82. Decumbent, 50. Dehiscence, 144, 164. Deliquescent, 51. Dependent plants, 106. Dichogamy, 144. Dicotyledon, 20. Dicotyledonous stems, 61. Digestion, 95. Digitate, 74. Dimorphous, 144. Diœcious, 138, 170. Dispersal of seeds, 172. Dissection, 30. Dodder, 35, 106. Drupe, 168. Drupelet, 168. Ecology, 14. Elaters, 198. Embryo, 26, 180. Embryo sac, 180. Endodermis, 44. Endosperm, 21, 24. Entomophilous, 148. Environment, 6. Epicotyl, 23, 25. Epidermis, of leaf, 86, 87. Epigeal, 23. Epiphyte, 35, 110. Equisetums, 201. Essential organs, 135. Excurrent, 51. Explosive seeds, 172. Fermentation, 190. Fern, 176. Fertilization, 144; cross, 144, 146; self, 145, 147, 188. Fibro-vascular bundles, 61, 90. Field study, 3, 6, 8, 14, 19, 27, 46, 57, 71, 84, 91, 101, 110, 118, 128, 132, 143, 152, 162, 170, 174, 181. Filament, 135. Floral envelopes, 133. Florets, 140.