Naturalisation in Extra- Tropical Countries. 363 



Pinus Pyrenaica, Lapeyrouse. (P. Brutia, Tenore.) 



In the countries at the Mediterranean Sea, ascending to 5,000 

 feet. A pine of quick growth, to 80 feet in height ; the wood is 

 pale and dry, almost free from resin, and of considerable value. 

 The tree commences to bear fruits in about a dozen years already. 



Pinus reflexa, Engelmann. 



California. Allied to P. flexilis, belonging to the Strobus section, 

 but with comparatively large inappendiculated nuts. 



Pinus relig-iosa, Hurnboldt. 



Oyamel-Fir. Mexico, from 4,000 to 11,500 feet above the sea- 

 level, thus reaching the limits of arboreous vegetation. A magni- 

 ficent tree with somewhat silvery leaves, growing to a height of 

 150 feet, stem reaching 6 feet in "diameter. The wood is particu- 

 larly well fitted for shingles and laths. This species endures the 

 winters of Middle Europe. 



Pinus resinosa, Solander. 



Red Pine. North-America, principally Canada and Nova Scotia, 

 but extending to Pennsylvania. It attains a height of 150 feet, the 

 stem a diameter of 3 feet. It is of rapid growth, and on account 

 of the reddish-ba.rked stem ornamental [Sargent] ; delights in sandy 

 soil, naturally drained, and on such produces the best quality of 

 timber [Fernow] ; the wood is hard, fine-grained, strong, elastic, 

 heavy and durable, to various extent resinous, and used for ship- 

 building and structures of various kinds. A search should be insti- 

 tuted after least odorous essential oils, some of which perhaps 

 yielded by particular pines, to effect the fixing of delicate scents, 

 which could not be isolated by distillation or other methods. 



Pinus rigida, Miller.* 



American Pitch-Pine. From New England to Virginia. It 

 grows to a height of 80 feet. Timber from gravelly or rocky soil 

 heavy and resinous, from damp alluvial soil light and soft ; used 

 for building. But the tree is principally important for its yield of 

 turpentine, resin, pitch and tar. It is suitable for sea-shores ; it 

 will also grow in the driest localities, as well as in swamps, nor is 

 it readily susceptible to injury from fire. Prof. Meehan mentions 

 this as the most rapid grower among North-East American pines. 

 With P. Tseda among the most oleous and resinous pines, to be 

 disseminated million-fold in such extensive malarial regions, as 

 cannot be readily or profitably drained, to subdue miasmata by the 

 copious evolution of the double oxyde of hydrogen and ozone. The 

 first trees in Australia were reared by the writer of this work. 



