444 Mr. Don's Desa-iptions of Five new Species of Pinus. 



the ordinary leaves, which give the cones a singular appearance. The seeds 

 are remarkable for a peculiarity in their structure, in having the nucleus 

 exposed at the inner angle of the seed through a considerable opening in the 

 outer testa, as if the junction of the two sides had been prevented by the 

 rapid enlargement of the nucleus*. It is only the middle branches that bear 

 cones. 



* This peculiarity in the structure of the seeds I have since noticed also in P. Webbiana, and in 

 several other species belonging to the group of silver firs. 



