Golovinomyces riedlianus (Speer) Heluta, 1988

on ? Asperula, Galium, Sherardia

gall

mycelium conspicuous, white, amphigenous, generally persistent. Appressoria nipple-shaped. Conidia in chains, elliptic, without fibrosin bodies. Cleistothecia with 6-25 asci that contain 2 spores. Appendages numerous, attached on and below the equator. They are up to 2 x as long as the diameter, flaccid, hyaline, septate, generally unbranched.

host plants

Rubiaceae, oligophagous

? Asperula cynanchica; Galium album, aparine, boreale, mollugo, spurium, trifidum, triflorum, verum; Sherardia arvensis

synonyms

Erysiphe riedliana Speer, 1970.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Klenke & Scholler (2015a), Kruse (2019a), Kruse (2014a), Negrean & Denchev (2000a [Erysiphe galii]), Scholler, Schmidt, Siahaan ao (2016a).