Erysiphe asclepiadis Kummer & Braun, 2009

on Asclepias

gall

mycelium epiphyllous. Appressoria nipple-shaped or more or less strongly lobed, single or paired. Conidia solitary, elliptic, without fibrosin bodies. Cleistothecia with 4-6 asci, that contain 3-5 spores. Appendages numerous, sub-equatorial and equatorial, 0.5-3.5 x the diameter; they are septate, unbranched, basally ± brown, and have a rough surface.

hostplants

Apocynaceae, monophagous

Asclepias incarnata, syriaca, tuberosa.

references

Beenken & Senn-Irlet (2016a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (1995a).

mod 25.viii.2018