]> GH barcode-00019151 Mexico San Luis Potosí Along Mex. Hwy. 49 between the cities of San Luis Potosí and Zacatecas, 49 miles west of San Luis Potosí. Halimolobos minutiflora Rollins Rollins 2010-08-16 16:41:49 R. C. Rollins & K. W. Rollins