Uromyces genistae Fuckel, 1870
on Euphorbia
gall
see Aecidium euphorbiae.
spermogonia, aecia
Euphorbiaceae, narrowly monophagous
Euphorbia cyparissias.
on Cytisus, Genista, Lembotropis
Genista linifolia, from González-Fragoso (1925a): urediniospores and teliospores
gall
Uredinia brown, pulverulent; spores 19-27 x 22-27 µm, remotely spinulose, with 3-6 randomly distributed pores. Telia, blackish brown, pulverulent; spores 16-18 x 21-24 µm, one-celled, very finely verrucose, warts often in parallel vertical lines; top with a low hyaline papilla; wall apically not thickened; pedicel deciduous, short.
uredinia, telia
Fabaceae, oligophagous
Cytisus decumbens, hirsutus, procumbens, ratisbonensis, striatus, supinus, villosus; Genista anglica, germanica, linifolia, monspessulana, pilosa, radiata, sagittalis, tinctoria, versicolor; Lembotropis nigricans
González-Fragoso (1925a) lists, among many other species, also Cytisophyllum sessilifolium; probably this refers to U. cytisi-sessilifolii.
synonyms
Uromyces genistae-tinctoriae (Persoon) Fuckel, 1884.
Gäumann treats genistae as a synonym of U. laburni. Termorshuizen & Swertz do not mention genistae, but implicitly consider it a synonym of U. pisi.
references
Bahçecioğlu & Kabaktepe (2012a), Brandenburger (1985a: 282, 339), Gäumann, 1959a), González-Fragoso (1925a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2019a), Llorens i Villagrasa (1984a), Termorshuizen & Swertz (2011a).