364 RYDBERG: NOTES ON ROSACEAE 
later. The type was collected by Thomas Nuttall and labeled 
by him Potentilla oregana. This name is cited in Torrey and 
Gray’s Flora as a synonym under P. glandulosa. It is, however, 
more closely related to D. Wrangelliana, having the same oval 
sepals, rounded and mucronulate at the apex, and the small petals 
of the species; but the pedicels are longer, those of the earlier 
flowers 1-2 cm. long, the infloresence less leafy, and the petals 
pure yellow instead of ochroleucous. The stem is also usually 
more conspicuously long-hairy. It is of more northern distri- 
bution, ranging from the Mackenzie and British Columbia to 
Idaho and Oregon, while D. Wrangelliana is confined to California. 
The following specimens belong here: 
OREGON: Columbia River, Nuttall; near Wimer, 1893, Ham- 
mond 114 A; base of Mt. Hood, 1894,/. E. Lloyd; eastern Oregon, 
1898, Cusick 2159; Juniper Springs, 1896, Letberg 2286. 
IpaHo: About Lewiston, May 27, 1896, A. A. & E. Gertrude 
Heller 3130; valley of Big Potlatch River, June 6, 1892, Sandberg, 
MacDougal & Heller 316; Moscow Mountains, May 30, 1900, 
Abrams 663. 
WASHINGTON: Olympic Mountains, August 1895, Piper 2000; 
Wenatchee, May 25, 1899, Whited I0g5. 
British CoLumsia: Between Kettle and Columbia rivers, 
July 19, 1902, J. M. Macoun 34527, 03786, and 63787; Skagit 
Valley, June 23, 1905, J. M. Macoun 69938; Chilliwack Lake, 1901, 
J. M. Macoun 34440. 
NortH West Territory: Franklin. 
When preparing the manuscript of my monograph in 1896, 
I studied several specimens labeled Potentilla reflexa Greene. 
Thinking these specimens authentic I drew my description of 
Drymocallis reflexa (Greene) Rydb. mainly from these specimens. 
Among this material was Coville & Funston 1355, from which the 
illustration was made. Having the opportunity to see Dr. 
Greene’s type while preparing the new revision for the North 
American Flora, I saw my mistake, and the plant described as 
D. reflexa in my monograph appears under the name D. laxiflora 
in the later work. In D. laxiflora, as well as in most species of the 
D. Wrangelliana group, the leaflets are rounded-obovate and the 
plant conspicuously viscid; while in Greene’s specimens of D. reflexa 
