Yale University Herbarium

YU.226947

# MOSSES OF WESTERN MINNESOTA.

MINNESOTA NATURAL HISTORY SURVEY.

EXPLORATION OF THE UPPER MINNESOTA RIVER, 1901.

## PYRAMIDULA TETRAGONA Brid.

Abundant in depressions on the granitic roches moutonnees in the valley of the Minnesota River from Granite Falls to the foot of Big Stone Lake.

Collected by J. M. Holzinger near Ortonville, Big Stone County, above lat. 45° N.

June 22 to 26, 1901.