Cerastium arvense L.

CHICAGO NATURAL HISTORY MUSEUM
VEGETATION SURVEY ALONG
THE ENTERPRISE-MACKENZIE
RIVER HIGHWAY, N. W. T.,
CANADA
		John W. Thieret
June 28	1959	Robert J. Reich
U857* Cerastium arvense L#
petals white, twice as long as sepals
infrequent in limestone barren area near mile 12»
much exposed rock, or rock thinly covered with
residual soil, ground cover plants: lichens,
Arctostaphylos uva-ursi. shrubs: Juniperus spp*,
Prunus, Amelanchier, Rosa« scattered jack pine*
herbs: Elymus, Zygadenus, Galium septentrionale,
Xrenaria rubella«
specimens prepared by the formaldehyde method (see Rhodora 49: 54-60. 1947)
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