Erysiphe mayorii var. cicerbitae Braun, 1984

on Lactuca

gall

mycelium amphigenous, also on the stems, mostly thin and colourless, consisting of long, hardly branching hyphae. Appressoria lobed, single or paired. Conidia solitary, oblong-elliptic, without fibrosin bodies. Cleistothecia with 6-30 asci, that contain 5-6 spores. Appendages numerous, sub-equatorial, mostly shorter than the diameter; they are mycelioid, septate, little and irregularly branched, eventually brown.

hostplants

Asteraceae, monophagous

Lactuca alpina, ? macrophylla, plumieri.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Dietrich (2016b), Jage, Klenke & Kummer (2010a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (1995a), Mayor (1967a), PiÄ…tek (2004a).

mod 25.viii.2018