27 August 1987.
Mexico
Locality: Collected on Highway 70 between San Luis Potosi and Tampico about 30 miles east of San Luis Potosi, 1.8 miles east of San Fransisco.
Coordinates: 10.5833, -22.0667
(Map it)
Elevation: 2012m.
Environment description: The mulit-trunked tree that nuts were collected from was about 200 feet east of site for DJUG 210, below the road on the north side. Many walnut trees in area, also Carya ovata. Tree was 8m tall, 16cm diameter, some iron deficiency.
Comment: Collected by Dan Parfitt, L. J. Grauke, J. Payne, B. Wood, and Jose Luis Cervantes.
Collector(s):