FOREST TEEES OF THE PACIFIC SLOPE. 59 



20, 21) are mature by the middle or end of August of the second season. They 

 remain strongly attached to the branches and closed for from six to ten or 

 more years; cut from the trees and dried in the sun, they open readily. The 



Fig. 10. — Pin us radio ta. 



tips of the cone scales are smooth, shiny, and a dark russet-brown, the inner 

 portions being dark purple. The seeds (fig. 21, a), with their jet-black pimpled 

 shells, are readily recognized. Seed leaves commonly 5 to ; occasionally 7. 



