Merrill: Lich. Exs.
George K. Merrill [1 - 275]

University of Colorado, Museum of Natural History
Catalog #: COLO-L-0044804
T.H. Nash III #39346 15 June 1997
Umbilicaria americana Poelt & T.H. Nash
United States, Arizona, Gila, Gila National Forest, Valentine Canyon, 0.5 km east of intersection of two forest service roads