Uromyces tuberculatus Fuckel, 1870

on Euphorbia

gall

No host plant alternation. Spermogonia and aecia hypophyllous, uniformly dispersed all over the leaf, that is not disfigured;, aecia sunken in the leaf tissue, orange, cupulate; spores densely verrucose. Uredinia cinnamon coloured, long covered by the epidermis; spores diameter 20-25 µm, with 5-7 pores. Telia amphigenous, almost black; spores one-celled, 18-24 x 20-30 µm, remotely verrucose; pedicel short, deciduous.

hostplants

Euphorbiaceae, narrowly monophagous

Euphorbia exigua, nicaeensis subsp. glareosa.

references

Brandenburger (1985a), Buhr (1964b), Ellis & Ellis (1997a), Gäumann (1959a), Gjaerum (1986a), González-Fragoso (1922a, 1925a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2008a), Wilson & Henderson (1966a).

mod 13.viii.2018