RYDBERG: NoTES ON ROSACEAE 385 
coarser pubescence of the stem. The following specimens are re- 
ferred here: 
CALIFORNIA: Descanso, 1897, Parish 4523; Cuyamaca Lake, 
1903, Abrams 3871; San Jacinto Mountains, Hall 2296; Fresno 
County, 1900, Hall & Chandler 182, in part; Laguna Mountains, 
San Diego County, 1904, Brandegee. 
Some of the specimens belonging to Potentilla dascia were 
included in P. Blaschkeana in my monograph. Later I referred 
them to P. glomerata A. Nelson. It is evidently related to the 
latter, but differs in the open inflorescence and the pubescence, 
which is much coarser and not at all tomentose, but slightly 
puberulent as well as hirsute on the lower surface of the leaves- 
I refer here: 
WASHINGTON: 1889, Vasey 320; Ellensburg, 1897, Piper 2736; 
Wilson Creek, 1892, Lake & Hull 518; Wilson Creek, 1893, 
Sandberg & Leiberg 315. 
OREGON: Dalles, 1869, Harford & Dunn 1144. 
Montana: Bozeman, 1892, Mrs. Alderson; 1874, Coues. 
Potentilla lasia is related to P. Hallii but is characterized by the 
few and large teeth of the leaves and the oblong-lanceolate instead 
of narrowly linear-lanceolate bractlets. To it are referred: 
CALIFORNIA: Schwartout Cafion, San Antonio Mountains, 
1899, Hall; Bear Valley, San Bernardino Mountains, 1894, Parish 
3252; Los Angeles County, 1899. 
Dr. Wolf reduces Potentilla Hallii to a variety of P. gracilis, 
evidently without having seen a specimen. This is not the only 
case he has treated in that way, for in about half the cases 
where species have been described by later authors, he has re- 
duced them to varieties of what seemed to him the nearest species. 
In habit the plant resembles much more what Dr. Wolf -describes 
under the name P. pulcherrima, than P. gracilis, but it lacks 
tomentum on the lower surface of the leaves and therefore should 
be placed near P. etomentosa in the Nuttallianae group. 
Dr. Wolf admits Potentilla etomentosa as a valid species, citing 
specimens from Wyoming. Not all species so named from Wy- 
oming belong to P. etomentosa, for some are P. jucunda. The 
latter he reduces to a variety of P. diversifolia, claiming that he 
can scarcely separate it from the variety glaucophylla, This 
