Potentilla nivea L.

Ct £
M
CHICAGO NATURAL HISTORY MUSEUM
VEGETATION SURVEY ALONG
THE ENTERPRISE-M ACKEN ZIE
RIVER HIGHWAY, N. W. T.,
CANADA
July 2		John W. Thieret \
	1959	Robert J. Reich |
NEW YORK BOTANICAL GARDEN
4910. Potentina nivea L.	petals yellow
ssp. hookeriana (Lehm.) Hiitonen frequent in
shallow residual soil in limestone outcrop area, mile
28 1/2. ground cover plants mainly Cladonia,
Arctostaphylos uva-ursi, Juniperus horizontalis, Saxi-
frage tricuspidata, scattered jack pine and white
spruce# some small trembling aspen, shrubs:
Juniperus communis, Pctentilla, Rosa, Shepherdie.
herbs: Zygadenus, Elymus innovatus, Galium septen-
trionale, Geum triflorum, Anemone multifida.
specimens prepared by the formaldehyde method (see Rhodora 49: 54-60. 1947)
V/N
02839312