INDEX 



347 



Sympetal.T, 268. 

 Sympetaly, 226, 227. 

 Symplocarpus, 243. 

 Syncarpy, 199, 219, 225. 

 Synergid, 202, 204, 205, 206. 



Tanacetum, 279. 

 Tansy : see Tanacetum. 

 Taraxacum, 213, 277, 278. 

 Taxonomy, 297. 

 Teleutospore, 64, 65. 

 Tension of tissues, 298. 

 Testa, 184, 211. 

 Tetracycla?, 268. 

 Tetrad, 103. 

 Tetraspore, 43. 

 Teucrium, 230, 274, 275. 

 Thallophytes, 2, 4, 172. 

 Thermotropism, 307. 

 Thistle : see Cnicus. 

 Thorn apple : see Datura. 

 Thuja, 193. 

 Thymus, 274. 

 Tickseed : see Coreopsis. 

 Tissues, 280. 

 Toad-flax : see Linaria. 

 Toadstools, 68. 

 Tobacco : see Nicotiana. 

 Tomato : see Lycopersicum. 

 TrachejT, 285, 286. 

 Tracheids, 286. 

 Transfer of water, 300. 

 Transpiration, 301. 

 Tree fern, 140. 

 Trichia, 75. 

 Trichogyne, 43, 44. 

 Trillium, 207, 246, 265. 

 Truffles, 60. 

 Turgidity, 298. 

 Typha, 239, 240. 



U 



Umbel, 266, 267. 

 Umbelliferffi, 206. 

 Umbellifers, 260. 

 Ulmus, 210, 256 

 Ulothrix, 12, 13, 22. 

 Uredo, 64. 

 Uredospore, 63, 04. 



Vaccinium, 269. 



Vascular bundle, 232, 234, 287, 291. 



Vascular cylinder, 234, 287. 



Vascular system, 129, 139. 



Vaucheria, 26, 27, 28. 



Vegetative multiplication, 9. 



Veins, 141, I42. 



Venation, 233. 



Verbascum, 275. 



VerbenaceaB, 275. 



Vernation, 143. 



Vernonia, 279. 



Veronica, 275. 



Vicia, 265. 



Violet, 211, 229. 



W 



Wall cell, 180. 



Walnut, 256. 



Water, 83, 314. 



Water ferns, 158. 



Water-lily, 223, 261. 



Water-lily family : see Nymphaea- 



ceae. 

 Water moulds, 51. 

 Wiieat rust, 63, 64, 65, 66. 

 Willow : see Salix. 

 Wind, 315. 

 Wintergreen : see Gaultheria. 



