Phyllosticta polygonorum Sacc. 1878

In Great Britain and/or Ireland:
Foodplant / spot causer
rather few and distant pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta polygonorum causes spots on leaf of Persicaria maculosa

Phyllosticta polygonorum Sacc. Michelia 1: 141. 1878
Spots circular or subcircular in form, or occasionally slightly irregular, surrounded by a very narrow slightly elevated rim, reddish-brown, reaching a diameter of 5-6 mm., with a. central eye-like spot, surrounded by numerous zonate markings; pycnidia quite thickly scattered over the infected spot on either side of the leaf, reaching a diameter of 120-140 /j; spores numerous, ellipsoid, rather variable in size but usually averaging 2-3 X 4-6 m-
On Polygonaceae :
Fagopyrum Fagopyrum (L.) Karst. {Polygonum Fagopyrum L,.), New Jersey. Type locality: Europe, on Polygonum Persicaria. Distribution : New Jersey ; also in Europe.