GENUS PTNUS. J^f) 



P. Pinea, Linnaeus. — The Stone or Umbrella Pine 

 of Europe. {Synonym : — P. maderensis, Tenore.) Medi- 

 terranean region, Madeira, Canaries. — As usually seen in this 

 country, the stone pine forms a low-growing tree, the trunk 

 dividing into numerous large branches at 5 feet or so from 

 the ground, the extremities being thickly beset with foliage, 

 the contour assumed being a bushy head of rounded appear- 

 ance. The leaves, two in a sheath, are 4^ inches long, and of 

 a warm, rich olive-green colour. Three years are required 

 for the full maturity of the cones, which are then of a light 

 reddish colour, 4 inches long by 3 inches in diameter. The 

 cone scales are stout, and remarkably hard, and with two large 

 wingless seeds beneath each, these being 2 of an inch long, and 

 containing a sweet and agreeable kernel. In the younger stages 

 of growth the tree is somewhat tender. Sandy or gravelly 

 soil suits it well. From samples of the wood of P. Pinea 

 that I have had cut up, both at Penrhyn Castle and Woburn 

 Abbey, it appears to be of fairly good quality, being light, 

 from the small quantity of resin it contains, and in colour 

 resembles the yellow pine of commerce. 



P. ponderosa, Douglas. {Synonyms : — P. Bentha- 

 miana, Hartweg ; P. brachyptera, Engelmann ; P. Beardsleyi, 

 Murray ; P. Craigiana, Murray ; P. Parryana, Gordon.) 

 British Columbia, south and east, to Texas. 1827. — As an 

 ornamental tree much cannot be said in favour of this species, 

 the rather lax and tortuous branches, long foliage, and generally 

 gaunt appearance imparting to it more of the picturesque than 

 the beautiful. The leaves, which are almost wholly confined to 

 the branch extremities, are somewhat rigid, varying in length 

 from 8 inches to 12 inches, and of a dark glaucous-green 

 colour. Cones small and ovoid, about 5 inches long, and the 

 scales terminating in short, stiff spines. Generally hardy. 



P. pseudostrobus, Lindley. Mountains of Mexico.— 

 Not hardy unless in very warm and maritime districts. It is 

 a handsome species of large and spreading growth, not unlike 

 P. Strobiis, but more silvery in appearance. 



P. pung^enSi Michaux. Virginia, Carolina, and Penn- 



