Alnus incana subsp. rugosa (Du Roi) R.T.Clausen

NEW YORK BOTANICAL GARDEN
02471932
The New York Botanical Garden
Woody Plants of U. S. A.
BETULACEAE Alnus rugosa (DuRoi) Spreng
Clump of shrubs, very common in floodplain pasture
along Pine River, beginning to spread vigorously in the
last 5 years since grazing, although very heavy during
parts of some years, is no longer continuous.
A very few old "cones" still persisting. This year's
"cones" green, not quite mature, splitting as the speci-
mens are pressed and dried. New male aments with
green scales and red protruding between them, hanging.
Female aments reddish.
WISCONSIN: Richland Co., 3 miles SE of Richland Center.
T 10 N; R 1 E; SW*NE* sec. 35.	alt. 220 m.
Coll.: M. Nee
14578-b
Aug. 20, 1977
02471932