Urocystis cepulae Frost, 1877

on Allium

gall

1 tot 2 cm long blue-green, later black pustules on the leaves and bulb, that rupture and release a black dusty mass op spore balls. Each spore ball consists of 1-2 spores wrapped in a more or less continuous layer of much smaller sterile cells.

host plants

Amaryllidaceae, monophagous

Allium akaka, ampeloprasum, angulosum, ascalonicum, atropurpureum, cepa, fistulosum, nigrum, oleraceum, rothii, rotundum, sabulosum, sativum, saxatile, scorodoprasum, subhirsutum, vineale.

synonyms

Urocystis allii Schellenberg, 1911; U. magica Passerini, 1875; U. oblonga (Massenot) Zogg, 1986.

notes

A pest species on A. cepa: “onion smut”.

references

Ainsworth & Sampson (1950a), Almaraz (1998a), Brandenburger (1985a), Buhr (1964b), Denčev (1991a), Ellis & Ellis (1997a), Klenke & Scholler (2015a), Lutz & Vánky (2009a), Melgarejo Nárdiz, García-Jiménez, Jordá Gutiérrez ao (2010a), Mułenko, Piątek, Wołczańska ao (2010a), Negrean & Anastasiu (2006a), Redfern & Shirley (2011a), Savchenko & Heluta (2012a), Savchenko, Heluta, Wasser & Nevo (2011a), Tomasi (2012a, 2014a), Vanderweyen & Fraiture (2014a), Vánky (1994), Vánky & Abbasi (2013a).

mod 25.iii.2019