You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Mud Lake, (Sayles Lake); Unadilla Twp Remove constraint Place: Mud Lake, (Sayles Lake); Unadilla Twp Place North America Remove constraint Place: North America Topic Equisetaceae Remove constraint Topic: Equisetaceae Topic Equisetum Remove constraint Topic: Equisetum Topic Plantae Remove constraint Topic: Plantae