INDEX 



207 



Loculicidal dehiscence, 166. 

 Lumber, 68. 

 Lycopodium, 204. 



Macrospore, 203, 204. 

 Marchantia, 196. 

 Medullary ray, 64. 

 Mesophyll, 86. 

 Micropyle, 21, 26. 

 Microscope, 21, 26. 

 Microspore, 203. 

 Midrib, 77. 

 Mint family, 139. 

 Mistletoe, 109. 

 Mold, 1 88. 



Monocotyledons, 20, 25, 63. 

 Monoecious, 138; 150, 170. 

 Mosses, 199. 

 Moss, Spanish, no. 

 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, g. 



Plants, unlikcncss 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. 



Protoplasm, 42, 94, 97, 185. 



Pruning, 105. 



Pseud-annual, 17. 



Pteridophytes, 181, 201, 203. 



Puffball, 194. 



Pyxis, 166. 



Quarter-sawed, 70. 



Receptacle, 134, 163. 



Respiration, in plants, 97, 103. 



Resting spore, 184, 185, 189, 191, 192. 



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. 



