Erysiphe begoniicola Braun & Takamatsu, 2000

on Begonia

gall

mycelium amphigenous, also on the stems and in the inflorescence. Appressoria lobed or multi-lobed, mostly single. Conidia solitary, oblong-elliptic, without fibrosin bodies. Cleistothecia with 6-10 asci, that contain 5-8 spores. Appendages 10-20, equatorial, 1-1.5 x the diameter; they are rather stiff, septate, mostly rough, brown near the base, at the tip 4-6 x times in quick succession dichotomously branched.

hostplants

Begoniaceae, monophagous

Begonia x hortensis, x tuberhybrida.

synonyms

Microsphaera begoniae Sivanesan, 1971.

references

Beenken & Senn-Irlet (2016a), Braun & Cook (2012a), Bresinsky (2016a), Jage, Klenke, Kruse ao (2016a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (1995a), Mułenko, Piątek, Wołczańska ao (2010a), Negrean & Anastasiu (2006a), Piątek (2004a).

mod 25.viii.2018