You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Alcona Twp. On N. side at mouth of the Black Riv. On Lake Huron ca. 16 mi. S. of town of Alpena. Remove constraint Place: Alcona Twp. On N. side at mouth of the Black Riv. On Lake Huron ca. 16 mi. S. of town of Alpena. Topic Salix Remove constraint Topic: Salix