408 



INDEX. 



Tryptophane reaction, 39. 

 Tulip, 256. 

 Turgor, 156. 

 Twining stems, 236. 

 Tyrosin, 50. 



Uredineae, 308. 

 Uredospore, 303. 



Vaucheria, 269. 



Vegetable marrow seed, 138 



stem, 87-93. 



Vegetative nucleus, 128. 

 Velamen, 115. 

 Vine, 33. 



Ward's tube, 21, 31. 

 Water culture, 164. 

 Water Lily, 101. 

 Water-glands, 123 ; stomata, 

 123. 



Wax, 124. 



Wheat, 38, 43, 44, 64, 140. 



Wood Sorrel, 33, 81, 259. 



Xanthoproteic reaction, 39. 

 Xanthoria (Parmelia, Physcia), 



309. 



Xerophilous structures, 124. 

 Xylem, 90. 



Yeast, 285. 

 Yew, 383. 



Zea (Maize), 38, 44, 97, 114, 



140. 



Zein, 38. 



Zoogametes, 262, 263. 

 Zoogonidia, 262, 263, 270, 275. 

 Zoospores, 276. 

 Zygospore, 268, 294. 

 Zygote, 262, 263, 268. 



PRINTED AT THE BURLINGTON PRKSS, CAMBRIDGE. 



