Taxon:
Verrucaria nigrescens Pers.
Family: Verrucariaceae
Collector:
W.W. Calkins 313
Verbatim Date: none given
Locality:
United States, Iowa, Fayette
Habitat:
rocks
Record Id: 1041e999-2ba9-4a0a-9cf7-f0d6e4a17c42
Occurrence ID (GUID):
a4de3338-5423-4fb7-9a23-df525869307d