THE CONIFERS 173 



into Great Britain in 1705. It is very hardy, but to do well 

 it requires a sheltered situation. It stands about half-way 

 between light-demanders and shade-bearers. It has a deep 

 growing root system and is storm-firm. It will produce good 

 timber on any aspect. It prefers a deep, fresh, loamy sand, 

 but is very accommodating and can be grown on almost any 

 soil provided it is not very dry. It is a quick grower and 

 will produce a much larger volume of timber per acre than 

 the Scotch pine. It can be grown in pure woods, but does 

 very well when mixed with other conifers or beech. It thrives 

 best when fully exposed to light, but it can be used for under- 

 planting larch or Scotch pine, as it improves the soil ; it is 

 useful for filling in blanks in existing woods. It can be cut 

 on a rotation of sixty to eighty years. The timber is largely 

 imported under the name of ' Yellow pine', though it is called 

 'White pine' in America, and is used for house-building. 

 Home-grown timber is, however, not very durable and is more 

 suitable for paper manufacture and for packing-cases and 

 other purposes where a light soft wood is wanted. It is a very 

 ornamental tree, but it is not valuable enough to plant as 

 a forest tree except on a small scale. 



Weymouth pine suffers from much the same kinds of insects 

 and fungi as the Scotch pine, but to a less extent. Peri" 

 dermium strobi> the Weymouth pine bark blister, causes much 

 damage to young trees, and Chermes corticalis, an insect 

 forming a woolly covering on the stem, does serious harm in 

 many localities. 



Many other pines are grown as ornamental trees, but none 

 of them are of much sylvicultural interest. Possibly Banks' 

 Pine (Pinus Banksiand) and the Remarkable pine (Pinus 

 insignis) may be of use in certain localities to fix shifting 

 sands on the sea coast, while the dwarf Mountain pine (Pinus 

 montana) is useful for providing cover for game at high 

 elevations above the limit of ordinary forest tree growth and 

 for the outer rows of a shelter belt. The Cembran pine (Pinus 



