﻿476 Rydberg: Notes ox Rosaceae 



Rubus argutus X nigricans. I cannot distinguish R. adscend- 

 ens Blanchard from Mr. Bicknell's hybrid. The following speci- 

 mens belong here: 



New York: Smithtown, Long Island, 1808, Bicknell 89. 



New Jersey: Allamuchy Mountains, 1906, Mackenzie 210S, 

 2300; Succasunna, 1909, Mackenzie 4153. 



Connecticut: Southington, 1906, Blanchard go; 1903, Blanch- 

 ard 262, 224; Londonderry, Blanchard 246; igo^, Andrezvs $3, j/, 56. 



Massachusetts: Essex County, Oakes. 



Rubus frondosus X nigricans. From this I cannot separate 

 Rtibus abbrevians Blanchard. The following specimens belong 



Massachusetts: Long Pond and Trot's Swamp, Nantucket 

 Island, 1910, Bicknell 31, 32. 



Connecticut: Southington, 1906, Blanchard qs- 



Vermont: Windham, 1904, Blanchard S7- 



Pennsylvania: German town, Meehan 867 g. 



Ruhiis nigricans X recurvans. R. semisetosus Blanchard I 

 regard as a hybrid between R. nigricans and R. recurvans. The 

 following specimens belong here: 



Connecticut: Southington, 1903, Blanchard 201, 202, 225; 

 Londonderry, Blanchard 247 ; Plainville, igo6, Blanchard gi, set i; 

 also 1903, 2^7, 203. 



Rhode Island: Rocky Point, 1906, Blanchard gi, set 3. 



Nova Scotia: Sable Island, Macoun 2iig3, 21 183 (these 

 specimens are doubtful). 



Rubus amicalis X nigricans. Rubus tardatus Blanchard is prob- 

 ably also a hybrid, the parents being R. amicalis and R. nigricans. 

 Mr. Blanchard's specimens are the only ones seen. 



Riibus nigricans X pergratus. In my opinion R. pecuUaris 

 Blanchard is also a hybrid, viz., of R. nigricans and R. pergratus. 

 Besides Mr. Blanchard's specimens the following belong here: 



Quebec: vicinity of Montmorency Falls, 1905, Macoun 67904, 

 67905- 



Rubus canadensis X nigricans. Rubus junceus Blanchard is 

 probably also a hybrid. Besides the specimens distributed by 

 Mr. Blanchard, the following are referred to it. 



