GENUS THUYA. 123 



spread of branches Is narrow in proportion to the height of 

 the tree, while the long annual growth causes these to be 

 placed far apart on the stem. There are two varieties, T, 

 gigantea compacta, and T. gigantea pendula. 



T. japonica, Maxlmowicz. (^Synonyms: Thuya Stan- 

 dishii, Carrifere ; TJmyopsis Standishii^ Gordon ; Thuya gigan- 

 tea japonica, Parlatore.) Mountains of Japan. 1861. This, 

 in general appearance, resembles the common arborvitae, but 

 is of much greater value as a decorative tree. It is of free 

 growth, less thickly branched than the American species, 

 with stouter and more pendulous branchlets, which are flattened 

 at the ends, and gracefully drooping. In winter the foliage 

 turns from the pale yellowish-green of summer to a distinct 

 bronzy tint, which is very pleasing and effective. With this 

 species there is far less difficulty in getting a leader than is 

 the case with many of the Thuyas. 



T. occidental is, Linnaeus. Common or American 

 Arborvitae. Canada, the New England and Middle States. 

 Prior to 1597. A commonly cultivated and perfectly hardy 

 shrubbery species, but one that is of little value for orna- 

 mental planting. It is usually of irregular growth, but 

 inclined to be pyramidal, with stout branches scattered over 

 the trunk, the branchlets partly drooping, and well clothed 

 towards the extremities in particular with the parti-coloured 

 foliage, which is brownish-green during the growing season, 

 changing to brownish-purple in winter. The following are the 

 most distinct varieties. 



T- OCCidentaiis argentea is of neat,dwarf growth, and 

 perfectly distinct from every other that I have met with. The 

 foliage is of a deeper green than the species, many of the branch 

 tips being tipped with white. It is very hardy and attractive. 



T. OCCidentaiis aurea is a beautiful and distinct 

 variety of one of the hardiest of all conifers. It grows robust 

 and strong, with an upright inclination, the foliage being 

 prettily suffused by rich golden-yellow, changing in winter to 

 a golden-bronzy hue. It is a desirable form of ready culture, 

 and quite constant. 



