You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place North America Remove constraint Place: North America Place Oaxaca Remove constraint Place: Oaxaca Place Valley of the Yelagago River, ca. 20 mi. n.e. of Villa Alta. Between Hallberg rance and river to the south. Remove constraint Place: Valley of the Yelagago River, ca. 20 mi. n.e. of Villa Alta. Between Hallberg rance and river to the south. Topic Hymenophyllales Remove constraint Topic: Hymenophyllales Topic Plantae Remove constraint Topic: Plantae Type still image Remove constraint Type: still image