164 RypBERG: NOTES ON ROSACEAE 
6. RosA BuTLERI Rydberg 
This species belongs to the Rocky Mountain region and was 
originally described from northwestern Montana. The following 
specimens from British Columbia are referred here: 
BritTisH COLUMBIA: Camloops, May 24, 1912, A. Thorpe. 
7. ROSA ACICULARIS Lindl. 
See Bull. Torrey Club. 47: 56. 1920. This is a common 
species throughout the northern Rockies and the Cascade Mo un- 
tains. 
8. RosA BoURGEAUIANA Crépin 
See notes in Bull. Torrey Club 47:57. 1920. Inthe Columbia 
region, this species has been found only north of the Canadian 
boundary. 
British CoLuMBIA: Okanogan Landing, Golden, Pense; Skeena 
River, J. K. Henry. 
9. RoSA ANACANTHA Greene 
This species is related to the eastern R. blanda, but differs in 
the crenate instead of serrate leaflets and the smaller fruit. It is 
known only from the type locality, in salt marshes near Tacoma, 
Washington. 
10. RosA MacDouGatit Holz. 
This is regarded by many as a form of R. Nutkana. It differs 
not only in the hispid fruit but also in the fact that the teeth of 
the leaflets are seldom double as they are in R. Nutkana and the 
leaflets are rarely glandular-granuliferous. Neither could it be 
referred as a form of R. Spaldingii, for in the latter the leaflets are 
pubescent beneath. The following specimens belong here: 
Ipano: Landing-Cuprum road 1901, Cusick 2533, 2352; 
Farmington Landing, 1892, Sandberg, MacDougal & Heller 572, 
Heller 3256. 
OREGON: Rye River Valley, Leiberg 4410. 
WasHINGTON: Pullman, 1896, Elmer 72, 74. 
11. ROSA YAINACENSis Greene 
Until lately this species was known only from the type locality. 
The habit, long prickles, and large fruit suggest R. Nutkana, but 
