
266 
Stem, ascending, 49. 
burrowing, 49. 
climbing, 48. _ 
deliquescent, 47. 
diffuse, 47. 
excurrent, 46. 
growth of, 26, 31, 52. 
prostrate, 48. 
trailing, 48. 
Stonecrop, 61. 
Stone fruit, 170. 
Strawberry, 170, 171, 173. 
Struggles against wind, 238-243. 
for territory, 244-248. | 
Sunflower, behaviour of, in flower- 
ing, 161-163. 
effect of light on, 144-146. 
Sweet pea, flower, 189-191. 
formation of seed, 192, 193. 
life story of, 185-193. 
Sycamore, opening buds, 35. 
Teasel, flowering of, 163, 165. 
Toadstool, 218. 
Torus, 171. 
INDEX 
_ Woody plants, 44. 



Touch-me-not, explosive fruits of, 
176. ‘ 
Tuber, 51, 
Vascular bundies, 106-108. 
Vetch, tendrils of, 1538. “a 
Virgin’s bower, seeds of, 182. 
Virginia creeper, 154. 
Water, absorption of, by plan 
87-93. = 
loss of, by plants, 94-106. 
use of, to plant, 74-86. 
Water paths in plant, 106. 
Water vapour, 96, 97. 
Willow, 164. , 
Willow-herb, 177, 178. 
Wind, struggles against, 238-243. 
trees permanently bent by, 24( 
243. | 
Wood anemones, 105. 
Woodland society, 259. 
Yucca society, 258. 
