386 RypBERG: NoTEsS ON ROSACEAE 
statement he bases on specimens received from me, collected at 
Chambers Lake, Col. In the Chamber’s Lake collection, dis- 
tributed by the Agricultural College of Colorado and named by me, 
large specimens of P. glaucophylla and rather small ones of P. ju- 
cunda were mixed. I did not notice this fact when the specimens 
were sent out and Dr. Wolf may have received specimens of the 
former instead of the latter. 
In the New Manual of the Central Rocky Mountains the 
author of the name Potentilla jucunda has reduced it to a synonym 
of P. Nuttallii, but it differs in the total lack of the glandular 
pruinosity characteristic of that species, in the thinner leaflets, 
and less prominent veins. 
As an appendage of this group, I added two Mexican species, 
P. oaxacana Rydb. and P. Goldmani Painter, with thicker 
leaves and but 5 leaflets to the basal leaves. They are known only 
from the type localities. 
New York BOTANICAL GARDEN. 
