Uromyces geranii (de Candolle) Otth & Wartmann, 1847
on Erodium, Geranium
Geranium pratense, Germany, Dinkelsbühl: telia; © Arnold Grosscurt
detail
Geranium spec., Amstelveen, Thijssepark: telia (and, difficult to find, a tiny uredinium here and there)
twice the same urediniospore
teliospores
Geranium spec. (cult.), Belgium, prov. Limburg, Hasselt, Domein Kiewit © Carina Van Steenwinkel
same leaf, underside
urediniospores
urediniospores, trapped in an air bubble, making the spinulation better visible
urediniosporen en teliosporen
gall
No host plant alternation. Spermogonia amphigenous, orange, darkening later. Aecia orange, at first wart-like, finally dish-shaped, on galled spots of the leaf underside and on the petioles. Uredinia and telia hypophyllous, dispersed over the leaf. Uredinia light brown; spores spinulose, 19-25 x 21-33 µm, 1(-2) germination pores (under the pore the spinulation is weak or absent). Telia dark brown; spores 1-celled, smooth, 15-33 x 15-40 µm; pedicel short, hyaline, deciduous.
host plants
Geraniaceae, oligophagous
Erodium cicutarium; Geranium albanum, albiflorum, argenteum, asphodeloides, atlanticum, bohemicum, cinereum, collinum, columbinum, dissectum, endressii, ibericum, lucidum, maculatum, molle, nepalense, nodosum, palustre, phaeum, pratense, pseudosibiricum, pusillum, pyrenaicum, reflexum, rivulare, robertianum, rotundifolium, sanguineum, sibiricum, sylvaticum, wilfordii.
synonyms
Uromyces kochianus Gäumann, 1933.
references
Blumer (1946a), Brandenburger (1985a), Buhr (1964b), Gäumann (1959a), Gjaerum & Dennis (1976a), González-Fragoso (1925a), Heluta, Hayova, Tykhonenko ao (2010a), Henderson (2004a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Ludwig (1974a), Marková & Urban (1988a), Mayor (1971a), Mułenko, Sałata & Wołczańska (1995a), Negrean (1996b), Pellicier (2001a), Preece & Hick (1994a), Redfern & Shirley (2011a), Roskam (2009a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a), Termorshuizen & Swertz (2011a), Tomasi (2014a), Unamuno (1941a,b), Vanderweyen & Fraiture (2008a), Woods, Stringer, Evans & Chater (2015a).