228 THE FLOWERING PROCESS 



Tulipa 69-70 Warbler, European 132 



Turnip (Brassica) 67, 111 Wheat {Triticum) 47-8, 54 



Turtle 131 



Xanthium (see cocklebur) 

 Ulva 101 



Zephyranthes 69 

 Vegetables 51 Zinnia Fig. 1-1 -G 



