IKDEX TO STRUCTTJEAL AND PHYSIOLOGICAL BOTANY. 



817 



VascuJar bundles, definite, 

 67 



, indefinite, fi6 



, simultaneous, 67 



— plants, 10 



— tissue, 40 

 Vasiform tissue, 40 

 Veins, 127, 145 

 Veinless, 144 

 Veinlets, 145 

 Venation, 14o 



— varieties of, 145, 147 

 Ventral suture, 261, 294 

 Vernation, 95, 141 

 Versatile, 241 

 Verticil, 134 

 Verticillaster, 205 



Verticillate, 134 

 Vesicles, germinal, 322 



40 



Vessels, functions of, 

 — of plants. 40 

 Vexillary, 213 

 Vexillnm, 225 

 Vitality of seeds, 784 

 Vitellus, 331 

 Vittae, 62 



Volatile constituents, 791 

 Volva, 378 



57 



Wardian cases^ 

 Weeping, 102 

 Wheel-shaped, 227 

 Whorl, 134 



I Whorled. 136 

 Winged, 169, 330 

 Wings, 225 

 Wood-cells, 38 

 Wood, structure of. 71 

 Woody parenchyma, 84 



— fibre, 3S 



— kinds of, 38 



— tissue, 38 



Xantheine, 28 

 Xanthic, 759 

 Xanthin, 28 



Zoospores, 381 , 382 

 Zoothecae, 367 



3g 



