sourceTaxonName: Physoderma vagans
targetTaxonName: Sium suave
localityName: United States
referenceCitation: Sparrow, F.K.. 1956. Observations on chytridiaceous parasites of phanerogams. V. The occur rence of %Physoderma butomi% and %P. vagans% in the United States. Mycologia 48:765-766