STG 
UNITED STATES DEPARTS!E!MT OF AGRICULTURE, 
BUREAU OF PLANT INDUSTRY. 
TAXONOMIC AND RANGE INVESTIGATIONS. 
Washington, D. 0., November 16, 1910. 
Hr. Walter Deane, 
29 Brewster St., 
Cambridge, Mass. 
Dear Mr* Deane: 
I have looked over the package of grasses which you 
recentljr sent to Mrs. Chase. You ask that I write the name 
neatly upon the sheet. Being unable to comply with the ad¬ 
verbial requirement, I have contented myself with, giving the 
determinations and leaving the fulfilment of the remaining dif¬ 
ficult task to yourself. I thank you for the specimens which 
you contributed t : Le ar iri im* * i ai .. specially glad to re¬ 
ceive the specimens of Heleo chloa. 
I am somewhat puzzled myself in assigning the specific 
limitations of the species of TIuhlenbergia in the particular 
group, including h. mexicana . In writing up this group for the 
manual, I depended largely upon Professor Scribner*s then recent 
work upon the eastern :"uhlenbergias. I think that sooner or 
later I Shall be obliged to revise the group and attempt to find 
more satisfactory specific distinctions. As noted upon the 
sheets of Spartina, I am also puzzled to find satisfactory dis¬ 
tinctions separating £5. f juncea and Z. patens . I accepted 
"errill’s work upon this group, but find that it is not entire¬ 
ly satisfactory. 
