Plant Parasites of Europe

leafminers, galls and fungi

Uromyces minor

Uromyces minor Schröter, 1887

on Trifolium

Uromyces minor on Trifolium dubium

Trifolium dubium; Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel

Uromyces minor: aecia on Trifolium dubium


Uromyces minor: aecia and tela on Trifolium dubium

almost all telia are still covered by the epidermis

Uromyces minor: teliospores


Uromyces minor teliospores

Trifolium incarnatum, from González-Fragoso (1925a): teliospores


No host plant alternation. Aecia on the young leaves, rather deeply sunken in the leaf tissue; peridium white, spores yellow. No uredinia. Telia hypophyllous, long covered by the silvery epidermis, eventually brownish black. Teliospores one-celled, with a few small warts that sometimes are arranged in a short row, on a short deciduous pedicel.

host plants

Fabaceae, monophagous

Trifolium ambiguum, angustifolium, campestre, dubium, incarnatum & subsp. molinierii, montanum, pratense.


Blumer (1946a), Brandenburger (1985a: 318), Buhr (1965a), Ellis & Ellis (1997a), Gäumann (1959a), Gjaerum (1986a), González-Fragoso (1925a), Henderson (2000a, 2004a), Jage, Klenke, Kruse ao (2016a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Spooner & Butterfill (1999a), Termorshuizen & Swertz (2011a), Tóth (1994a), Vanderweyen & Fraiture (2008a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

Last modified 9.x.2022