You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place El Puerto de Potrerillos; 7 km ENE of El Lobo on road hwy 120 from Xilitla to Jalpan Remove constraint Place: El Puerto de Potrerillos; 7 km ENE of El Lobo on road hwy 120 from Xilitla to Jalpan Place Mexico Remove constraint Place: Mexico Place San Luis Potosí Remove constraint Place: San Luis Potosí Topic Carex Remove constraint Topic: Carex