G YMA'OSPEJiMS: WHITE PINE. 



301 



line of the cone is lanceolate, or long oval, and somewhat 

 curved. It measures about 10-15COT long. If we remove one 



Fig. 

 Sterile 

 Seeds 

 oped. 



of the 



34IJ. Fir. ,U7. Fig. 348. Fig. 340. Fig. 350. 



scale. Scale \\-ith Seeds have Back of scale Winged 



undevel- we 1 1 - developed split off from with small co\'er seed free from 

 seeds. scale. scale. scale. 



Figs- 346-^50, — ^\"hite pine showing details of mature scales and seed. 



scales, just as they are beginning to spread, or before the 

 seeds have scattered, we shall find the seeds at- 

 tached to the upper surface at the lower end. 

 Iff There are two seeds on each scale, one at each 

 '^ lower angle. They are ovate in outline, and 

 shaped somewhat like a biconvex lens. At this 

 time the seeds easily fall away, and may be 

 freed by jarring the cone. As the seed is 

 detached from the scale a strip of tissue from 

 the latter is peeled off. This forms a " wing " 

 for the seed. It is attached to one end and is 

 shaped something like a knife blade. On the 

 back of the scale is a small appendage known 

 as the co\'er scale. 



614. Formation of the female pine cone. — The female 



llowcr^ bcL^in their development rather late in the spring 



of the year. They are formed from terminal buds of 



the higher branches of the tree. In this way the cone 



m.ty terminate the m.iin shoot of a branclt. or of the 



Pig 351. lateral shoots in a \\h(.irl. Aftergrowth has proceeded 



Female cones of the for some time in the spring, the terminal portion begins 

 pine at time of poUina- "^ 



lion about natural size, to assume the appearance of a young female cone or 



