This University of Minnesota botanist is intensely dedicated to his study of Minnesota flora…
– Rock vegetation, lichens, and mosses on sand bluff, Minnehaha, July, 1902
(From the photograph collection of the Department of Botany)
This University of Minnesota botanist is intensely dedicated to his study of Minnesota flora…
– Rock vegetation, lichens, and mosses on sand bluff, Minnehaha, July, 1902
(From the photograph collection of the Department of Botany)