284 THE NVRSERY-BOOK. 



Wistaria. Leguminosce. 



Readily grown from seeds. Sometimes by division. 

 Layers. Cuttings of ripened wood, usually handled under 

 glass. The common purple and white kinds are largely 

 grown from root-cuttings, an inch or two long, placed in 

 bottom heat, when they will start in four or five weeks. 

 Many of the fancy kinds, especially when wood is scarce, are 

 root-or crown-grafted upon W. Sinensis, 



Witch-hazel. See Hamamelis. 

 Woad-Waxen. See Genista. 



Woodbine. A name properly belonging to climbing Loniceras, 

 but often applied to Ampelopsis, both of which see. 



Wormwood, Southern wood (Artemisia Absinthium} . Compositce. 



Seeds and division. 

 Wrightia, Balfouria (Palay or Ivory-tree). Apocynacece. 



Seeds ; usually by cuttings, which root readily in sand in 

 heat. 



Xanthoceras. Sapindaceoe. 



Usually multiplied by seeds ; root-cuttings are sometimes 

 used. 



Xanthorhiza, Zanthorhiza. Ranunculacece. 



Seeds and suckers. 

 Xanthorrhcea (Black Boy, Grass-tree). Juncacece. 



Seeds; but usually by offsets. 

 Xanthosoma, including Acontias. Aroidecc. 



May be increased by cutting up the stem or root-stock into 

 small pieces and planting these in light soil, or cocoa fibre, in 

 bottom heat. After a stem has been cut off, a number of 

 shoots are developed, which can be treated as cuttings. 



Xerophyllum. Liliacece. 



May be propagated by seeds and by divisions. 



Xiphion. See Iris. 

 Xylophylla. See Phyllanthus. 

 Yam. See Discorea. 

 Yellow-wood. See Cladrastis. 

 Yew. See Taxus. 



