500 M?'. David Douglas ou a nezv Species of Pinus. 



P. Lambertiana ; foliis quinis rigidis scabriusculis, vaginis bre- 

 vissimis, strobilis crassis longissimis cylindricis : squamis 

 Iaxis rotundatis. 



I have the honour to be, 

 Dear Sir, 

 Your very obedient Servant, 



David Douglas. 



Plorticullural Society, 

 November 1, 1827. 



XXV. Re- 



