Rydberg: Notes ox Rosaceae 479 



few specimens referred to R. trifrons by Blanchard apparently 

 belong here also. The following specimens have been recorded: 



Vermont: Townsend, 1903, Blanchard 241; Stratton, 1904, 

 Blanchard 55, set 2; South Londonderry, 1903, Blahchard 2^0. 



New Hampshire: Alstead, 1903, Blanchard 232, 231. 



Ruhus cubitans Blanchard seems to me to be a mixture. 

 The flowering branches and the new shoots were not col- 

 lected at the same time. Do they belong to the same plant? 

 The floral branches seem to me as typical R. hispidus, though 

 with more flowers than usual. The leaflets of the new shoots 

 have the texture of those of R. hispidus but the form of those of 

 R. vermontanus. They may very well represent a hybrid. 



Ruhus argutus X hispidus. This was first recognized by Mr. 

 Bicknell, who, however, did not characterize the same. Only 

 Bicknell's specimens are known. 



Ruhus canadensis X hispidus. The only specimens seen, 

 which may be referred to this hybrid, are the original ones cited 

 in the North American Flora. 



Nova Scotia: Le Have River, Macoun 8i4j6a. 



New York Botanical Garden 



