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on Laburnum

Laburnum watereri, Hungary, Budapest, arboretum, 31.vii.2019 © László Érsek

underside of a leaf with uredinia

uredinia

15.x.2019, three months later

uredinia and telia

gall

Uredinia amphigenous; spores remotely spinulose, with 3-6 randomly distributed pores. Telia amphigenous, dark brown; spores one-celled, very finely verrucose, warts often in parallel vertical lines; top with a low hyaline papilla; pedicel deciduous, short.

uredinia, telia

Fabaceae, ? monophagous

Laburnum alpinum, anagyroides, watereri.

According to Gäumann also on Cytisophyllum, Cytisus and Genista species, but that is not confirmed by Klenke & Scholler.

“Colutea istria”, mentioned by Savchenko ao cannot be interpreted.

references

Beltran Tejera (1976a), Brandenburger (1985a: 2292), Gäumann (1959a), Gjaerum (1982a, 1987a), Gjaerum & Sunding (1986a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Mayor (1973a), Termorshuizen & Swertz (2011a), Tóth (1994a), Vanderweyen & Fraiture (2008a).