Baneberry, white, 49. Barberry, 49. stamens of, 193. Bark, defined, 120, 121. Basswood, leaves of, 165. Bean, planting of seed of, 80. seed leaves of, 81. development of seed, 81-83, 96-98. root of, 99. stem of, 115, 117. Bee, a pollen carrier, 17, 18, 189, 207, 226, 227, 233. Beech tree, 215. Beet, root of, 102, 103. Birch tassels, 208, 209. Birds, as seed transporters, 72, 73. Bittersweet berries, 42. Black alder, 49. Blackberry, development of, 235-237. Bladderwort, 179, 180. Bloodroot, 106. Bloom, 173. Blue daisy, 251. Blue flag, classified, 88. Bristles, 175. Bryophyllum, 132, 133, 150. Buckwheat seed, a food, 91. Buds, 125-133. protection of, 126, 127, 131. position of, 128, 132. unprotected, 130. on leaves, 132, 133. Bulb, described, 105, 106. an underground stem, 216, 217. Bulblets, defined, 132. Burdock burr, 35, 36, 52, 53, 95. Burrs, description of, 52. use of, to plant, 53. as seed cases, 67, 68. Buttercup, pistils and stamens of, 201 Buttonwood buds, 130, 131. C Cabbage leaves, 173. Cabbage, skunk, 204. Caladium, 163, 164. Calyx (cup), described, 15. position of, 18. function of, 188. defined, 189. Carrion vine, 230, 231. Carrot root, 102. Carrot, wild, 246, 247. Castor-oil plant, seed of, 72. Cells, 139-143. description of, 139. passage of moisture through, 147, 148. water supply of, 149. functions of, 152. loosening leafstalk, 185. Cherry blossom, parts of, 37, 38, 188, 189, 218. development into cherry, 37, 38, 189. Cherry tree, branch of, 126. buds of, 129. Cherry, wild, 39. Chestnut, burrs of, 67, 68. seed leaves of, 87, 88. leaves of, 161. Chicory flower, pollen of, 197. Chlorophyll (leaf green), described, 137. function of, 151-161. Chokecherries, 39, 40. Clematis, seed appendages of, 58. fruit clusters of, 59. stem of, 115. “Clock,” dandelion’s fruit, 35. Clover, red and white, 117. leaf of, 168. a flower head, 243, 244, 247. Coal, origin of, 152, 153. Cocoanut, 69. Coffee seed, a food, 91. Color change in leaf, 185. Coloring of fruit, function of, 42, 43, 50. Columbine, plan of, 221. spur of, 226. Composite family, 248, 252, 254. Corm, 105, 106. Corn, seed of, 80, 88. seed leaves of, 88. stem of, 114, 117. stalk of, 120, 121. Corolla, position of, 15. of apple blossom, 19. function of, 188. defined, 190. Cottonwood seed, 61. Cotyledons, see “seed leaves.” Crane’s bill, 65, 66. Crocus, bulb or underground stem of, 105, 150. an early flower, 216. Cup, green, see “calyx.” Cyclamen, underground stem of, 105. D Daffodil, 216. Daisy, pollen of, 196. plan of, 249-251. blue, 251. flower head of, 252. strap and tube flowers of, 254, 255.