HARDY CONIFEROUS TREES 157 



P. sylvestris, Thunberg ; P. rubra, Siehold.) 

 Japan. 1861. — This is a rare tree in Britain, 

 though in Cornwall and other warm maritime 

 places, as also at Kew, good examples may be 

 seen. The leaves are 5 inches long, rather 

 tortuous, and deep green in colour. The cones, 

 both in shape and size, resemble those of our 

 common larch. 



P. Thunbergii aurea. — This has justly been 

 recognised as the best of Golden Pines, the primrose- 

 yellow colour of the leaves being sharply defined, 

 and the contrast with the bright green very 

 marked. A great advantage that it possesses over 

 many other coloured conifers is, that the yellow 

 tint becomes all the more pronounced on trees 

 fully exposed to sunlight. As a specimen lawn 

 tree this variety is of great value. Grafted on 

 the common Scotch Pine, it does well. 



P. TUBERCULATA, Gordou. Oregon and west 

 side of Californian coast ranges. 1847. — Amongst 

 hardy or tolerably hardy species the present should 

 be included, for in many parts of the country it 

 has succeeded admirably, though in others it has 

 failed to become established. Usually it forms 

 a specimen of fully 20 feet in height, with a well- 

 rounded and thickly branched head, the lower 

 portion of the trunk being destitute of branches, 

 these after about twelve years' growth gradually, 

 with a portion of the foliage, giving way. The 

 leaves are bright green, nearly 6 inches in length, 

 and the cones 5 inches long by 2 inches diameter 

 at thickest part. The cones are produced in 

 clusters, but sometimes straggling singly on both 

 stem and branches, and persist for many years, 



