UNITED STATES DEPARTMENT OF AGRICULTURE 

 BUREAU OF PLANT INDUSTRY 



WASHINGTON 



July £8, 1921, 



Mr. 'alter Deane, 



Shelburne , New Hampshire. 



Dear Mr . Deane : 



Your letter of July 23 enclosing another specimen 

 of Danthonia has heen received. I did not save the other 

 plant hut as I recall it it was ^ust the same as this. I was 

 mistaken in referring it to D. compressa. Someftimes in tie 

 rush of identifying 7000 to 8000 plants A I have named things 

 without verifying my identification. It is an inexcusable 

 thing to do. Reexamining this plant I think it is the same 

 form as one I collected in 1916. I am sending you several 

 specimens with notes. The Danthonia teeth show& in Gray's 

 Manual are, I think, shorter than usual for the species. I tried 

 to get about the average of the short-toothed form for the 

 figure in Hitchcock's Genera of Grasses (page 120). 



• ^JU^Jt VSry mch ln need 0f 8 thoroi *gli revision. 

 The genus^is small enough to be handled without many years of 

 work, and I wish someone would undertake it. There is such 

 exceptional opportunity here for agrostological work that 

 it often troubles me that more students do not come here to study 

 groups of grasses. The herbarium is kept in order up to date, 

 is geographically arranged, and there are numerous notes by 

 Dr. Hitchcock or myself, calling attention to characters or to 



