252 SELECT PLANTS FOR INDUSTRIAL CULTURE 



by this Pine for an enormous length of time. The annual produc- 

 tion of resin from a good tree fluctuates between 5 and 8 Ibs., if 

 moderately tapped. The quantity of resin gathered in France 

 during 1874 was about sixty million pounds (Crouzetter-Desnoyers). 



Pinus Pinceana, Gordon. 



Mexico, up to 9,000 above sea-level. A very remarkable Pine, 

 having drooping branches like the Weeping Willow, 60 feet high. 

 Most desirable for cemeteries. 



Pinus Pindrow, Koyle. 



In great abundance on the spurs of the Himalaya Mountains, 

 8,000 to 12,000 feet abeve the sea-level. A fine, straight-stemmed 

 tree, 100 feet high; cones purple. 



Pinus Pinea, Linne.* 



Stone Pine. Frequent in the countries bordering on the Mediter- 

 ranean. Height of tree 60 feet, top rather flat. The wood is 

 whitish, light, but full of resin, and much used for buildings, furni- 

 ture, and ships. The seeds are edible, somewhat resembling almonds, 

 but of a resinous though not disagreeable taste ; they should be 

 left in the cones until they are about to be used, as otherwise they 

 speedily become rancid ; they only ripen in their third year. This 

 Pine grows as easily and almost as quickly as the Cluster Pine. 



Pinus Pinsapo, Boissier. 



Spanish Fir. In Spain, on the Sierra Nevada, 4,000 to 6,000 feet. 

 A tree 60 feet high, with branches from the ground. The timber 

 is similar to that of the Silver Fir. 



Pinus polita, Antoine. 



Japan and Kurile Islands. A tall superb tree, forming large 

 forests on the mountain ranges (A. Murray). 



Pinus ponderosa, Douglas.* (P. Benthamiana, Hartweg.) 



Yellow or Pitch Pine or Trucker Pine of the mountains of North- 

 west America. Height of tree up to 225 feet, with a stem of 24 

 feet in circumference, of comparatively quick growth. The wood is 

 yellowish, hard, strong, durable and heavy, and for general purposes 

 preferred to that of any other Pine. There are fine groves of this 

 tree up to 5,000 feet in California. P. Jeffrey i (Murray) is, accord- 

 ing to Dr. Yasey, a variety of this species The variety P. 

 Englemanni, Parry, ascends to 12,000 feet. The bark contains a 

 considerable quantity of tanning substance. Wood pale and soft, 

 neither knotty nor resinous, much esteemed for cabinet-work 

 (Hoopes). It is of great strength, and is used for floors, joists, 

 &c. Dr. Gibbons relates that the wood, with the bark adherent, 



