You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Mountains 10 miles southeast of Ahuacatlán, on the riad to Barranca del Oro and Amatlán. Remove constraint Place: Mountains 10 miles southeast of Ahuacatlán, on the riad to Barranca del Oro and Amatlán. Topic Equisetales Remove constraint Topic: Equisetales