You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Puerto Rico Remove constraint Place: Puerto Rico Place ridge N. of Río Doña Juana, Toro Negro purchase unit, N. of Villalba Remove constraint Place: ridge N. of Río Doña Juana, Toro Negro purchase unit, N. of Villalba Topic Bryophyta Remove constraint Topic: Bryophyta Topic Dicranales Remove constraint Topic: Dicranales Topic Fissidens Remove constraint Topic: Fissidens