68o 



Vacuole, 7 



Variegated alfalfa, 447 

 Vascular bundles, 35 



elements, 35 

 Vegetative activity, i 

 Velvet bean, 422 

 Vetch, 414, 426 



black bitter, 428 



crown, 429 



Dakota, 429 



hairy, 427, 430 



Hungarian, 430 



kidney, 429 



Narbonne, 429 



narrow-leaved, 428 



purple, 428 



Russian, 430 



scarlet, 428 



Siberian, 430 



villous, 430 



woolly-podded, 429 

 Vetchling, 432 

 Vexillum, 414 

 Vicia, 414, 426 



angustifolia, 428 



atropurpurea, 428 



dasycarpa, 429 



ervilia, 428 



faba, 427, 429 



fulgens, 429 



key to important species of, 427 



narbonnensis,, 429 



sativa, 427, 429' 



villosa, 427, 430 

 Vigna, 458 



catjang, 458 



sequipedalis, 458 



sinensis, 458, 460 

 Villous vetch, 430 

 Vilmorin sugar beet, 308 

 Vine peach, 620 

 Vinegar, 383, 503 

 Virginia creeper, 16, 33 



Virginian strawberry, 363 

 Vitaceae, 491 



key to important genera of, 492 

 Vitis, 492 



aestivalis, 499, 500 



bourguiniana, 501 



labrusca, 499, 500 



riparia, 499, 500 



rotundifolia, 499, 500 



rupestris, 499, 500 



vinifera, 499 



Wakefield cabbages, 332 

 Washingtonia, 532 

 Water cress, 345 



hyacinth, 16 



lily, 29 

 Watermelon, 610, 622, 623 



types and varieties, 623 

 Welsh onion, 232, 237, 239 

 West Indian gherkin, 617 

 Western crabapple, 379, 381 



dewberry, 356 

 Wheat, 88, 89, 91 



classification of the types of, no 



club. III, 112, 113, 114 



common bread, in, 112, 113, 114 



durum, 89, in, 112, 113 



grain, microscopic section, 100 



hard, 106 



naked, in, 112 



Polish, III, 112, 113 



Poulard, in, 112, 113 



soft, 106 



spelt, in, 112, 113 

 White blackberry, 354 



clover, 433, 441 



currant, 320 



mulberry, 255 



mustard, 327, 340 

 Whortleberry, 546 

 Wild barnyard grass, 210 



beet, 301 



