
INDEX 
Mushroom, horse-tail, 220. 
ink cap, 219. 
life story of, 215, 221. 
mycelium of, 217. 
poisonous, 217-219. 
shaggy mane, 220. 
spawn, 216. 
spore print, 216. 
spores, 216. 
Nitrogen, 124. 
Oak, life story of, 194-208. 
mossy, 200. 
red, 200. 
scarlet, 201. 
Turkey, 199. 
Ovule, 192. 
Oxidation, 131. 
- Oxtongue, 182. 
Oxygen, 123-125. 
Peat bogs, 251. 
Pepo, 174. 
Perennials, 43. 
Petioles, rigidity of; 83, 84. 
Pimpernel, 48. 
Pine, fruits of, 223, 225. 
seeds of, 225. 
struggles of, 222-237. 
Pines, enemy of, a bracket fungus, 
232. 
galls on, 234. 
Plant societies, 249-261. 
Pod, 169, 171, 172. 
~ Pome, 174. 
Pond scum, 117. 
Prostrate plants, 42. 
Protoplasm, 92. 
royal bit of, 198. 
Puffballs, 220, 
265 
Raspberry, 172, 173. 
Receptacle, 171. 
Reed-mace, 248. 
Reindeer moss, 214. 
Respiration, 126-131. 
Rhizome, 49. 
Root hairs, 10, 11, 15, 16, 58, 59. 
Roots, air, 55, 56. 
behaviour of, toward moisture, 
32. 
bracing, 56. 
fibrous, 55. 
growth of, 24, 25. 
pressure of, 87. 
taproots, 54. 
work of, 57, 87-98. 
Rootstock, 49. 
Samara, 182, 183. 
Sanicle, 188. 
Scale scars, 37. 
Scotch pine, 222. 
Screw pine, bracing roots of, 56. 
Seedlings coming up, 1-6. 
Seeds, contrasted with fruits, 168. 
germinating, 7-17. 
how formed, 158, 192. 
how scattered, 176-184. 
winged, 182. 
Sensitive plant, 182-135. 
Shoots, winter, 35-89. 
Spawn of bracket fungus, 2338. 
Sperm, 193, 208, 209. 
Sperm pocket of fern prothallium, 
208, 209. 
Sphagnum, 261. 
Starch, 109. 
test for, 109, 114. 
uses of, 119. 
Stem, 45-53. 
