Berberis thunbergii, Belgium, prov. Antwerp, Meerhout © Carina Van Steenwinkel

gall

Mycelium amphigenous, mainly epiphyllous, thin, white. Appressoria nipple-shaped, lobed or multilobed, solitary or paired. Conidia formed solitary, elliptic, without fibrosin bodies. Cleistothecia with 4-10 asci, that contain 3-5 spores. Appendage 5-20, equatorial, 1.5-2 x the diameter; ± stiff, brown at the base, 0-1-septate. Apices 3-5 times regularly forked in quick succession.

host plants

Berberidaceae, oligophagous

Berberis aetnensis, aggregata, ahrendtii, amurensis, approximata, x bidentata, canadensis, chinensis, circumserrata, crataegina, x declinata, diaphana, dielsiana, edgeworthiana, empetrifolia, gagnepainii, holstii, humidoumbrosa, ilicifolia, jaeschkeana, jamesiana, koreana, lepidifolia,lucida, ludlowii, lycium, morrisonensis, x neubertii, oblonga, parviflora, poiretii, polyantha, pruinosa, repens, sargentiana, sieboldii, silva-taroucana, suberecta, x teaselliana, thunbergii, tsarongensis, umbellata, vernae, vulgaris, wallichiana, wilsoniae, yunnanensis; Mahonia aquifolium, bealei, eutriphylla.

synonyms

Microsphaera berberidis (de Candolle) Léveillé, 1851.
Microsphaera rubi Čerermisinov, 1976, from Rubus caesius, is insufficiently described. It may be a synonym of E. berberidis or E. lonicerae.

hyperparasites

Ampelomyces quisqualis.

references

Blumer (1967a), Brandenburger (1985a), Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Czerniawska (2001a), Czerniawska, Madej, Adamska ao (2000a), Dynowska, Fiedorowicz & Kubiak (1999a), Ellis & Ellis (1997a), Jage, Klenke & Kummer (2010a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2014a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Kruse & Jage (2014a), Kruse, Thiel, Rätzel, ao (2020a), Leysen (2017a), Liu, Bradshaw, Braun, ao (2022a), Mayor (1967a), Mieslerová, Sedlářová, Michutová, ao (2020b), Piątek (2004a), Ruszkiewicz-Michalska (2006a), Ruszkiewicz-Michalska & Michalski (2005a), Sucharzewska, Dynowska, Kubiak ao (2012b), Świderska, Wołczańska, Kozłowska ao (2005a), Talgø, Sundheim, Gjærum ao (2010a).