Erysiphe celosiae Tanda, 2000

on Amaranthus, Celosia

gall

mycelium amphigenous, also on the stems, causing white, confluent patches. Conidia solitary, oblong-elliptic, without fibrosin bodies. Cleistothecia with 3-8 asci, that contain 3-5 spores. Appendage 10-50, equatorial, 0.3-2 x the diameter; they are mycelioid, septate, most of them several times irregularly forked.

hostplants

Amaranthaceae, oligophagous

Amaranthus caudatus, emarginatus, hybridus, powellii, tricolor, viridis; Celosia argentea.

references

Ale-Agha, Boyle, Braun ao (2008a), Braun & Cook (2012a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a).

mod 25.viii.2018