120 



PLANT INVENTORY NO. 152 



Walnut. See Juglans australis. 



black. See Juglans nigra. 



Persian. See J. regia. 

 Watermelon. See Citrullus vulgaris. 

 Welsh onion. See Allium fistulosum. 

 Wheat, common. See Triticum aesti- 

 vum. 



durum. See T. durum. 

 Wheatgrass, crested. See Agropyron 

 cristatum. 



slender. See A. pauciflorum. 



western. See A. smithii. 



Xanthisma texanum, 149096. 



Yam. See Dioscorea spp. 

 Yam-bean. See Pachyrhizus erosus. 

 Yellow-wood. See Cladrastis lutea. 



Zea mays, 147634, 

 147707, 147823, 



148428, 

 148506, 

 148702, 

 148866, 



148429, 



147670-147686, 



147984-148006, 



148452, 148504- 



148716, 148717, 148864- 

 149113-149150, 149713, 

 149714, 149766, 149891-149894. 

 Zinnia elegans, 148549-148562. 



spp., 150071-150090. 

 Ziziphora tenuior, 149493. 

 Ziziphus mistol, 149418. 



-ft U. S. GOVERNMENT PRINTING OFFICE: 1951-948377 



