Trifolium arvense, from González-Fragoso (1925a): urediniospores and teliospores

gall

No host plant alternation, only telia. They are dark brown, hypophyllous, on galled spots of the veins and petioles. They are one-celled, (almost) smooth, with a small apical papilla; the pedicel is short and thin, deciduous.

host plants

Fabaceae, monophagous

Trifolium alexndrinum, alpestre, ambiguum, angustifolium, arvense, aureum, campestre, dasyurum, dubium, echinatum, fragiferum, glomeratum, hirtum, hybridum, incarnatum, montanum, nigrescens, ochroleucon, pallescens, pannonicum, pratense, repens, resupinatum, rubens, thalii, tumens.

synonyms

According to Klenke & Scholler the name U. trifolii is often used as a collective concept denoting any Uromyces on clover. In most cases the intended species will be U. flectens.

references

Afshan, Khalid & Niazi (2012a), Bahçecioğlu & Kabaktepe (2012a), Bahçecioğlu, Kabaktepe & Yildiz (2006a), Blumer (1946a), Brandenburger (1972a, 1985a: 318), Buhr (1964b, 1965a), Doppelbaur & Doppelbaur (1968a), Ellis & Ellis (1997a), González-Fragoso (1925a), Henderson (2000a, 2004a), Koops (2013a), Kozłowska, Mułenko & Heluta (2015a), Kruse & Jage (2014a), Losa España (1942a), Melgarejo Nárdiz, García-Jiménez, Jordá Gutiérrez ao (2010a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Savchenko, Heluta, Wasser & Nevo (2014e), Termorshuizen & Swertz (2011a), Tomasi (2012a, 2014a), Tóth (1994a), Unamuno (1942a), Vanderweyen & Fraiture (2008a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).