]> FH barcode-00964879 United States of America Massachusetts Mohawk Trail State Forest, Old Growth Area 5-3, S ridge of Clark Mountain, 0.35 km NNE of junction of Black Bk Rd and MA 2. (NAD83) Verrucaria nigrescentoidea Fink Fink 2020-02-04 14:41:28 P. F. May