248 The Trees of Great Britain and Ireland 



per 100 cubic feet/ The growth of the tree from seed is very slow at first as in 

 the alHed species. 



History and Cultivation 



Tsu£-a Siedo/dii was introduced into Europe by Siebold in 1850. Cones both 

 of this species and of Tsug-a diversifolia were brought from Japan by John Gould 

 Vetch in 1861, and the latter species was sent out under the name Abies Tsuga, var. 

 nana. Specimens cultivated at Kew as Tsuga Sieboidii, var. nana, belong to Tsug-a 

 diversifolia. 



Though both species have been introduced long enough to prove their hardiness 

 in favoured parts of the South of England, we have never seen even a moderately 

 large tree, and doubt much if either species will attain timber size in this country. 

 The Japanese hemlocks seem to prefer a light moist rich soil, free from lime, with 

 shade and shelter from cold winds. They will not grow at all on the limestone soil 

 of Colesborne. The best specimen we know is in the garden of Mr. W. H. Griffiths 

 at Campden, Gloucestershire, and is about 15 feet high. It bore cones in 1905. 



Sargent ^ says that Tsuga Sieboidii is one of the most graceful and satisfactory 

 of the exotic conifers cultivated in American gardens, where it promises to grow to a 

 large size ; but in the garden of Mr. Hunnewell at Wellesley, Massachusetts, which 

 I visited in May 1904, I noted that it had been almost killed to the snow line by the 

 exceptionally severe winter of 1903- 1904, though it had produced cones in the 

 preceding year.' (H. J. E.) 



' In Industries of Japan, 236 (1889), Rein, who did not distinguish between the two species, probably speaking oi 

 Tsuga Sieboidii, says that the finest specimens seen by him were in the forests of Kin-shima-yama in Southern Kiu-siu, where it 

 grows with Picea polila, and equals it in size, attaining 4 to 5 metres in girth. This goes to show that the tree enjoys a warm 

 moist climate. 



- Silva No7-th America, xii. 60. 



^ Beissner states \n. Mitt. D. D. Ges. 1905, pp. 165, 167, that T. diversifolia is hardier than T. Sieboldu, but both of 

 them grow well in East Friesland, and Mayr says that T. diversifolia is hardy at Municli. 



