Rydberg: Notes on Rosaceae 469 



Nova Scotia: Granville, 1909, Blanchard 718, 727; Yar- 

 mouth, Blanchard 728. 



Rtihus nigrohacctis X vermontanus. If R. glandicatdis is a 

 hybrid between R. nigrobaccus and R. nigricans, R. frondisentis 

 is very likely a hybrid between the former and R. vermontanus. 



Vermont: Townshead, 1903 and 1904, Blanchard 243, 244; 

 Huntington, 1903, Blanchard 257. 



Riibiis hispidus X nigrobaccus. R. permixtus Blanchard stands 

 in the same relation to R. hispidus as R. glandicaulis does to 

 R. nigricans, I therefore do not hesitate in regarding it as a hybrid 

 between R. nigrobaccus and that species. 



Vermont: Westminster 1902 and 1903, Blanchard 225, 226, 

 227, 22g; Putney, 1902, Blanchard 228; Westminster, 1903, Eg- 

 gleston 3245. 



New Hampshire: Walpole, 1903, Blanchard 2jj. 



Nova Scotia: Macoun 81438, 81439. 



Rubus argut'us X frondosus. This was first recognized by Mr. 

 Bicknell. 



New York: Rockville Center, Long Island, 1906, Bicknell 38; 

 between Yonkers and Mount Vernon, 1902, Burnham. 



Connecticut: Southington, 1905, Blanchard 99, set i; 1904, 

 Andrews 27. 



Rubus argutus X recurvans. This was included in R. argutus 

 X frondosus by Bicknell, who did not regard R. frondosus and 

 R. recurvans distinct. 



Massachusetts: Quaise, Nantucket Island, 1909, Bicknell 

 34- 



New York: Cedarhurst, Long Island, 1910, Bicknell 37. 



Rubus argutus X Baileyanus. This was also segregated out 

 by Mr. Bicknell. 



Massachusetts: below the "CUff," Nantucket Island, 1910, 

 Bicknell 40. 



New York: East Rockaway Bog, Long Island, 1908, Bicknell 

 41; also at Hawlett, Bicknell 42. 



Rubus argutus X Enslenii. This was also recognized by Mr. 

 Bicknell, although he did not publish the same. His specimens 

 closely match the type of R. ostryifolius Rydb., which I now do 

 not hesitate in regarding as this hybrid. 



