INDEX 



207 



LocuHcidal dehiscence, 166. 

 Lumber, 68. 

 Lycopodium, 204. 



Macrospore, 203, 204. 

 Marchantia, 196. 

 Medullary ra\', 64. 

 Mesophyll, 86. 

 Micropyle, 21, 26. 

 Microscope, 21, 26. 

 Microspore, 203. 

 Midrib, 77. 

 Mint family, 139. 

 Mistletoe, 109. 

 Mould, 188. 



Monocotyledons, 20, 25, 63. 

 Monoecious, 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. 

 Oogonia, 186. 

 Orchid, 35, no. 

 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. 

 Peduncle, 62. 

 Peltate, 77. 

 Perennial, 17. 



Pericarp, 164, 165, 169. 



Petals, 134. 



Petiole. 76. 



Phenogam, 177, 180. 



Photo-synthesis, 94, loi. 



Phyllotaxy, 84. 



Pine cone, 27, 170. 



Pinna, 181. 



Pinnate, 74. 



Pinnatifid, 76. 



Pistil, 135. 



Plantain, 157. 



Plant societies, 9. 



Plants, unlikeness of, 9. 



Plumule, 20, 23, 25. 



Plur-annual, 18. 



Pod, 164. 



Pollen, 135, 144, 180. 



Pollination, 144, 145; artificial. 153. 



Polypetalous, 134. 



Polysepalous, 134. 



Polytrichum, 199. 



Pome, 169. 



Primrose, 140. 



Propagation by buds, 121. 



Prop-roots, 36. 



Proterandrous, 146. 



Proterogynous, 146. 



Prothallus, 178, 202. 



Protoplasi.:, 42, 94, 97, 185. 



Pruning, 105. 



Pseud-annual, 17. 



Pteridophytes, 181, 201, 203. 



Puffball, 194. 



Py.xis, 166. 



Quarter-sawed, 70. 



Receptacle, 134, 163. 

 Respiration, in plants, 97, 103. 

 Resting spore, 184, 185, i8g, lyi, ^92. 

 Rhizome, 52, 202. 

 Root cap, 44. 

 Root climber, 129. 

 Root hairs, 41, 42, 46. 

 Rootlet, 41. 



Root pressure, 99, 104. 

 Roots, and air, 41; forms of, 32; func- 

 tion, 38; structure, 38, 43; systems, 



32- 

 Rust, 192. 



Samara, 164. 

 Sap, 67. 

 Saprophyte, 107, 108. 



