Flower, 133, 180; apetalous, 136; clusters, 155; complete, 136; diclinous, 137; double, 142; imperfect, 137; incomplete, 136; lateral, 136; naked, 136; perfect, 137; pistillate, 137; regular, 138; staminate, 137; sterile, 137; solitary, 156; terminal, 156. Foliage, 16. Follicle, 165. Forestry, 68. Framework of plant, 15. Frond, 176, 178, 181. Fruit, 163. Fucus, 186. Funaria, 201. Fungi, 187. Fungus, 107, 108, 184, 187, 195. Gametophyte, 179. Gamopetalous, 134. Gamosepalous, 134. Generation of plants, 16. Geotropism, 44, 47. Germination, 22, 23, 27. Glomerule, 160. Grafting, 125. Grit cells, 67. Guard cells, 88. Gymnosperm, 26, 170. Hairs, 87. Herb, 17. Hilum, 21, 26. Hip, 168. Hollyhock, 147. Homologous, 134, 135. Host, 107. Haustoria, 107. Hyphæ, 107, 188. Hypocotyl, 22. Hypogeal, 23. Indehiscent, 164. Indusium, 177. Inflorescence, 155, 160. Internode, 52. Involucre, 34, 141, 163, 164. Iron, 39. Isoëtes, 203. Key fruit, 164. Laboratory, 3. Landscape, 13. Larkspur, 148, 149. Latex tubes, 67. Leaf, apex of, 80; base of, 80; function of, 92; margin of, 80; structure, 86. Leaf scar, 90. Leaves, arrangement of, 82; shapes of, 78, 85. Legume, 165. Legume family, 35, 169. Lenticel, 89. Lichens, 195. Ligneous, 17. Liverworts, 196. Lobes of leaf, 75. Locule, 136, 163, 166. Loculicidal dehiscence, 166. Lumber, 68. Lycopodium, 204. Macrospore, 203, 204. Marchantia, 196. Medullary ray, 64. Mesophyll, 86. Micropyle, 21, 26. Microspore, 203. Midrib, 77. Mint family, 139. Mistletoe, 109. Mould, 188. Monocotyledons, 20, 25, 63. Monœcious, 138, 150, 170. Mosses, 199. Moss, Spanish, 110. Mullein, 87. Muscadine, 36. Mushroom, 107, 194. Mycelium, 107, 108, 188. Mycorrhiza, 108. Natural selection, 8. Nectar, 148. Nitella, 187. Nitrogen, 39, 40. Nodes, 20, 52. Nodules, 39, 40. Nostoc, 184. Notebooks, 3. Nucleus, 144, 185. Nuts, 164. Oleander, 86. Oögonia, 186. Orchid, 35, 110. Oscillatoria, 184. Osmosis, 42, 48. Ovary, 135, 144, 163, 170. Overgrowth, 12. Ovule, 144, 186. Palisade cells, 86. Palmate, 74. Panicle, 158. Pappus, 141. Parasites, 107. Parenchyma, 60, 86. Pedicel, 162.