THE BEST HARDY CONIFERS 129 



finally to green; Wareana, denser in habit with foli- 

 age of a deeper and brighter green than the type; 

 Wareana aurea, with bright golden-yellow branchlets 

 during the growing season; plicata, with short 

 branches and rigid, erect branchlets and brownish 

 green foliage, and its forms argenteo- and aureo- 

 variegata with silver and yellow branchlets; lutea, 

 which is pyramidal and columnar in habit with 

 bright yellow and orange-yellow young branchlets; 

 and pendula, with rather slender branches bending 

 downward, tufted branchlets and green foliage. 



The Chinese Arborvitae (Thuja orientalis), which is 

 a small tree from twenty-five to thirty feet tall and col- 

 umnar or pyramidal in outline, is not hardy in New 

 England. It has been in cultivation in Europe since 

 1752, and has given rise to many forms which re- 

 semble but are not superior to those of the native 

 Arborvitae (7\ occidentalis). 



Another Arborvitae (Chamaecyparis thyoides), na- 

 tive of the swamps from Maine southward to north- 

 ern Florida, is very hardy and worthy of recognition. 

 It is a slender tree from sixty to eighty feet tall, with 

 short, thin, spreading branches which form a spire-like 

 crown, and very small scale-like, imbricated dull 

 bluish green leaves, which turn rusty brown in winter. 



Of late years the so-called dwarf trees of Japan have 



