106 M. T. Baker: Validity of CalUtris. 



Recent research has shown (1) that the two trees ditier in facies, 

 being easily distinguished in the field ; (2) that they (lifter in the 

 quality and texture of their timber and hark; (3) most decidedly 

 in the chemical constituents of the leaf content. 



In all probability E. citriodora will be a source of considerable 

 commercial enterprise in the future when it will be known as 

 such, and not as E. niaculata, var. citriodora, of recent botanists, 

 and the same remarks will also apply to the several Pines it is 

 now proposed to classify as Oallitris robusta. 



