Naturalisation in Extra-Tropical Countries. 389 



Firms Griffithii, Parlatore. (Larix Griffithii, J. Hooker and Thompson. ) 



The Himalayan Larch. Descends to 8,000 feet and ascends to 



12,000 feet. Timber pale, soft, without distinct heartwood, one of 

 , the most durable of all pine-timbers [Stewart and Brandis]. P. 



Ledebourii (Endlicher) is the Siberian Larch. 



Pinus Halepensis, Miller.* (P. maritima, Lambert.) 



Aleppo-Pine. South-Europe and North-Africa, South- Western 

 Asia. This well-known pine attains a height of 80 feet, with a stem 

 to 5 feet in diameter. The timber of young trees is pale, of older 

 trees dark-coloured ; it is principally esteemed for ship-building, but 

 also used for furniture. The tree yields a peculiar kind of turpentine, 

 as well as a valuable tar. Although ascending mountains in South- 

 Europe to the height of 4,000 feet, it thrives best in sandy coast- 

 lands, where in ten years it will measure 25 feet, and finally will 

 become a larger tree than on firmer lands. M. Boitel has published a 

 special work on the importance of this pine for converting poor sand- 

 land into productive areas, referring also to P. silvestris and P. Laricio 

 for the same purpose. According to the Hon. W. Winter-Irving 

 it will resist an occasional heat of 118 F. in the shade. We find the 

 Aleppo-Fir one of the best of evergreen avenue-trees in Victoria, as 

 first proved by the writer. It is content with the poorest and driest 

 localities, and also here comparatively rapid in growth. Does also 

 particularly well on limestone soil, its roots penetrating far into the 

 crevices of the rocks [Dr. Henry Bennett]. 



Pinus Hartwegii, Lindley. 



Mexico, 9,000 to 14,000 feet above sea-level. A pine, reaching 

 150 feet in height, with a very durable wood of a reddish colour ; it 

 yields a large quantity of resin. 



Pinus Hookeriana, McNab. (Abies Hoolceriana,, Murray.) 



California, at 5,000 to 6,000 feet elevation. A fir, allied to P. 

 Pattoniana, but distinct [Dr. McNab]. Height of tree to about 

 300 feet. Stem perfectly straight. Wood hard, of a reddish colour, 

 with handsome streaks. Not a resinous tree. Hardy in Middle 

 Europe. 



Pinus Hudsonica, Poiret. (P. Baiiksiana, Lambert. ) 



Grey Pine. Colder parts of North- America, both eastern and 

 western, up to 64 north-latitude. Height of tree to as much as 

 100 feet ; in the cold north only a shrub. Its wood is light, tough, 

 resinous and easily worked ; locally used for railway-ties. Extends 

 further north than any other pine in America [Dawson and Macoun]. 

 Should prove valuable for alpine forests. 



