V 



U. S. DEPARTMENT OF AGRICULTURE, 



DIVISION OF BOTANY, 



WASHINGTON, D. C. 



January 14,1896. 



Mr. Walter Deane , 



Caiibridge , Mass. 

 My dear Mr. Deane :- 



I Ire turn to you to-day your Thaspix;uTi collect- 

 ed by Mr. Pollock, as well as the Zizia which I seem to have had on 

 hand some time. The Zjzia is distinguished from the Thaspium 

 chiefly by the fruit not being winged and the central fruit in the 

 umbel being sessilg* I do not think there is more than one 



species of the 'I'hasyium aureum group and if so, it is a little 

 hard to say what name should be used. I have not been able to 

 take up the question since I wrote to you and I really have no new 

 information to send you. 



I send you also a few additional specimens, some of which may 

 be of use to you. 



Professor Wheeler is now at work in the herbariiam and will be 

 here several weeks. 



my 



I also send you a set of^ photo graphs which you may wish to put 

 in your herbarium. 



Yours very tmly. 



Assistant Botanist. 



