INDEX 255 



Vascular bundle, 62 Witches'-brooms, 174 



Wood, destruction of by 



Water content of the soil, fungi, 169 



81 



Water, importance of, 29 Xerophyte, 138 

 Water, movement of in 



plants, 83 Zoospores, 35, 207 



Water plants, 120 2ygote, 213 



