F. de Thuemen, Mycotheca Universalis. Centuria X. 950. uredo Aspidiotus Peck in XXIV. Rep. New-York State Museum Nat. Hist. p. 88. f. Dryopteridis. U. maculis flavis vel viride-flavis, distinctis vel raro confluentibus, Aspidioto similaribus in forma; soris uni-terni in pagina superiore; sporis luteis, ovatis vel pyriformibus.- A Uredine Filicum Schlcht. differt toto habitu et sporarum forma modulusve. America septentr.: Adirondack Mountains- New-York0 in frondibus vivis Polypodii Dryopteridis Lin. Aug. 1876. leg. Ch. H. Peck.