conifer. SILVA OF NORTH AMERICA. 57 



offered for sale in the markets of Colorado and New Mexico, and rarely in those of the cities of the 

 eastern states. 



Pinus edulis was discovered in 1846 in the valley of the Rio Grande in New Mexico by Dr. F. 

 A. Wislizenus. It is occasionally cultivated in the gardens of the eastern United States, where it is 

 perfectly hardy as far north as eastern Massachusetts, and in those of Europe. In cultivation, however, 

 it grows very slowly, forming a rather compact pyramidal bush, and shows no tendency as yet to 

 assume the picturesque habit of its mature years. 



