You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Alger Remove constraint Place: Alger Place in bay of Grand Sable Lake near center N1/2 sec. 15. Remove constraint Place: in bay of Grand Sable Lake near center N1/2 sec. 15. Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Topic Potamogetonaceae Remove constraint Topic: Potamogetonaceae