FORESTRY OF JAPAN. 35 



Hako-yanagi (Populus tremula L. var. villosa Wesm. ) and 



i-Doro-no-Ki {Populus balsamifera L. var. suaveolens Loud) 

 These species are the unique material for making match sticks. 

 Populus tremula L. var villosa Wesm. is found in Shikoku, 



i Kyushu, and Hokkaido while the Populus balsamifera L. 

 var. suaveolens Loud, thrives in the northern part of Honshu 

 as well as in Hokkaido. In Karafuto, it is also found in 



..a limited quantity. They never fail to grow in light and 

 wet soil. In Monbetsu and Shari counties of Kitami province, 

 Kamikawa county of Ishikari province, and the Tokachi 

 county of Tokachi province in Hokkaido, they form perfectly 

 developed pure forests by themselves. They are fond of 

 growing in sunny places. Being rapid in growth, in 25 years, 

 they attain the height of 20 metres. These trees may b 

 regenerated either by cuttings, seeds, or suckers. 



Kuri {Castanea vulgaris Lam. var. japonica Dc.). This 



- tree grows extensively in Kyushu, Shikoku and the western 

 part of Honshu presenting beautiful sylvan features along the 

 slopes of high mountains or hills while in the central as wel 

 as the northern part of Honshu, fine timber of this species 

 is produced in plains. It does not form large forests by 

 itself growing mixed with Buna {Fagus sylvatica L. var. 

 Sieboldi Maxim.), Hiba [Thujopsis dolabrata S. et Z.), Kiwada 

 (P/iellodendrou amurense Rupr.), Katsura {Cercidiphyllum 



japonicum S. et Z.), Kaede {Acer palmatum Tkunb), and 

 Sawa-gurumi {Pterocarya rhoifolia S. et Z.) but it forms forests 

 unmixed with other trees as seen in the Kohinata State 



t . forests, Tone county, Kozuke province, and in Hiraka county, 

 .Ugo prevince. The wood being hard, it stands moisture for 



