You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Along highway US-31 and overflow pond of Muskegon River, north of Muskegon. Remove constraint Place: Along highway US-31 and overflow pond of Muskegon River, north of Muskegon. Place Michigan Remove constraint Place: Michigan Place USA Remove constraint Place: USA Topic Alismatales Remove constraint Topic: Alismatales Topic Lemna Remove constraint Topic: Lemna Topic Magnoliopsida Remove constraint Topic: Magnoliopsida