SCOTCH PINE. 



Pinus sylvestris L. 







PRELIMINARY. 



THE Scotch pine is a species commonly planted for 

 ornament. It may be readily recognized by the follow- 

 ing characters. At a short distance the tree has a 

 grayish-green color. The leaves are in pairs, five to 

 ten centimeters (two to four inches) long, somewhat 

 twisted, covered with a whitish powder which can be 

 rubbed off with the fingers and to which the peculiar 

 color of the tree is due. The cones are small, about 

 five centimeters (two inches) in length, the free ends of 

 the scales being produced into conspicuous protuber- 

 ances, which near the base of the cone are recurved. 



The Austrian pine, a two-leaved species also com- 

 monly planted for ornament, differs from the preced- 

 ing in having longer leaves from ten to fifteen centi- 

 meters (four to six inches) in length with a dark green 

 color without any of the powder. The cones are much 

 larger and without the recurved protuberances. If 

 the Scotch pine can not be procured the Austrian will 

 do quite well, being closely similar to it in structure. 



The flowers, both male and female, should be col- 

 lected in spring as soon as the male flowers begin to 

 scatter their pollen. The male flowers when mature 



