Plant Parasites of Europe

leafminers, galls and fungi

Erysiphe ulmariae

Erysiphe ulmariae Desmazières, 1846

on Filipendula

gall

mycelium amphigenous, also in the stems, persistent only around the cleistothecia. Appressoria lobed. Conidia solitary, elliptic, without fibrosin bodies. Cleistothecia with 6-16 asci, that contain 6-8 spores. Appendages sub-equatorial, sometimes equatorial, 0.3-6 x the diameter; they are mycelioid, not or little and irregularly branched, septate, initially hyaline, ultimately yellow to brown.

host plants

Rosaceae, monophagous

Filipendula kamtschatica, ulmaria, vulgaris.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (1995a), Kruse (2019a), Losa España (1942a), Scholler & Schubert (1993a).

Last modified 22.vii.2019