You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Cerro de la Muerte. Above and below road leading to summit of the cerro off Pan-American Hwy. Remove constraint Place: Cerro de la Muerte. Above and below road leading to summit of the cerro off Pan-American Hwy. Topic Huperzia Remove constraint Topic: Huperzia