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USNM Number: 1793604

Collection Number: 4255

Collection Date: 1938-04-20 single date

Collectors: Balls, E. K. (Balls, Edward Kent)

Country: MX

State/Province:

Territory: Mexico City

County:

Precise Locality: Pedregal, D.F.

Latitude:

Longitude:

Elevation: 7000 feet

Cultivated: