166 RYDBERG: NOTES ON ROSACEAE 
15. RosA Duranpii Crépin 
This was based on EF. Hall 146, which was referred to Rosa 
kamtschatica by Dr. Gray. Dr. Watson in his monograph reduced 
it toa synonym of R. Nutkana. Crépin, probably influenced by 
Watson’s treatment, later retracted his species. In my opinion 
R. Durandii is perfectly distinct from R. Nutkana. The leaves 
are thicker, more hairy than in that species, and rarely double- 
toothed; the prickles are not like those of R. Nutkana, but curved, 
short, strongly flattened and pubescent. As long as only Hall’s 
specimens were known, the specimens might have been regarded 
as freaks, but specimens almost exactly like these have since been 
collected. 
OrEGON: E. Hall 146; Brownville, 1895, Canby; near Spring- 
field, Coville & Applegate 1076. 
British CoLuMBiA. Queen Charlotte’s Island, Dawson 
8144 (?). | 
Ipano: Lower Priest River, Leiberg 2883. This specimen is 
very peculiar, nearly unarmed, but with the pubescence of the 
leaves and twigs of R. Durandit. 
16. RosA COLUMBIANA Rydberg 
This also is related to R. Nutkana but differs in the strongly 
curved prickles. It is a rather local plant, the following specimens 
belonging here: 
IpaHo: Little Potlatch River, 1892, Sandberg, MacDougal & 
Heller 381; Kooteney County, Sandberg. 
OREGON: Forest Grove, 1893 and 1894, Lloyd. 
17. ROSA MYRIADENIA Greene 
This species has the habit, toothing, and glandular pubescence 
of R. muriculata, but the leaflets are smaller and the prickles are 
decidedly curved; these characters would place it in the key 
next to R. columbiana. From this it differs in the smaller and 
more pubescent leaves. It is known only from the type locality, 
Huckleberry Mountains, Jackson County, Oregon. 
18. ROSA CALIFORNICA Cham. & Schlecht. 
This Californian species has been collected in the extreme 
southern part of Oregon. 
