Uromyces polygoni-avicularis (Pers.) G. H. Otth 1864

In Great Britain and/or Ireland:
Foodplant / parasite
uredium of Uromyces polygoni-avicularis parasitises live stem of Polygonum aviculare sens.str.
Remarks: season: 7-11
Other: major host/prey

Foodplant / parasite
uredium of Uromyces polygoni-avicularis parasitises live stem of Rumex acetosella
Remarks: season: 7-11
Other: minor host/prey

Foodplant / parasite
uredium of Uromyces polygoni-avicularis parasitises live stem of Polygonum arenastrum
Remarks: season: 7-11
Other: minor host/prey

Nigredo polygoni (Pers.) Arth. R&ult. Sci. Congr. Bot
Vienne 344. 1906.
Puccinia Polygoni Pers. Neues Mag. Bot. 1 : 119. 1794.
Puccinia Poly goniAviculariae Pers. Syn. Fung. 227. 1801.
Uredo Centumnodii Schum. Enum. PI. Saell. 2: 231. 1803,
Puccinia Aviculariae DC Fl. Fr. 2 : 221. 1805.
Dicaeoma Aviculariae S. F. Gray, Nat. Arr. Brit. PI. 1 : 542. 1821.
Capitularia Polygoni Rab. Bot. Zeit. 9 : 4^9. 1851.
Uromyces Polygoni Fuckel, Symb. Myc. 64. 1869.
Uromyces Aviculariae Schrot. Abh. Schles. Ges. 48 : 8. 1870.
Caeomurus Polygoni Kuntze, Rev. Gen. 3^ : 450. 1898.
Pycnia amphigenous, few, in small groups about 0.5 mm. across, inconspicuous, honey-yellow becoming brownish, depressed-globoid, 112-144^ in diameter, 75-100 m high ; ostiolar filaments 75-90 ju long.