112 THE CULTIVATED EVERGREENS 



from cuttings and grafting. They require a silt loam soil 

 with perfect drainage. 



Retinispora plumosa argentea has light green foliage and 

 white-tipped branches. R. plumosa aurea is a golden form. 

 Both varieties require some protection in winter, especially 

 from the sun. R. squarrosa is a densely branched bushy tree 

 with spreading feathery branchlets. It is not a strong grower 

 and should be planted in front of taller trees. All the retinis- 

 poras are propagated from cuttings or grafted. They require 

 care when young, gentle bottom heat for the cuttings in lath 

 frames as well as in the greenhouse, and copious watering 

 overhead. 



Chamcecyparis, or Retinispora, obtusa, is a bushy grower of 

 solid or compact form. It is one of the strongest growers of its 

 class. The foliage is firm, of a clear green color and graceful 

 drooping habit. Var. nana, with very dense, short foliage of 

 an extremely dark green, is well adapted for rock-garden 

 planting. 



Taxus canadensis, American yew, is a valuable dwarf ever- 

 green seldom more than three feet high, with dense, dark 

 green foliage. It is particularly attractive in autumn when 

 loaded with its scarlet fruits. It thrives best in shady situations 

 and well-drained silt loam and is hardy in the Northwest and 

 Canada. This yew is useful for nature planting as well as 

 for hedges and formal gardens. It can be pruned to any de- 

 sired shape. The foliage assumes a reddish tint in winter. It 

 is propagated from cuttings in lath frames with gentle bot- 

 tom heat or in hothouses. 



Taxus cuspidata, or Japanese yew, grows forty to fifty 

 feet high in Japan, but under cultivation does not attain this 

 height. It is one of the hardiest yews and withstands extreme 

 heat and cold in America. It is of close, upright, compact 



