Erysiphe friesei (Léveillé) Braun & Takamatsu, 2000

on Rhamnus

gall

mycelium amphigenous, thin. Appressoria lobed, generally solitary. Conidia formed solitary, short-elliptic, without fibrosin bodies. Cleistothecia with 3-8 asci, that contain 3-5 spores. Appendage 5-12, equatorial, 1-2 x the diameter; they extend horizontally and straightly, are hyaline or brown at the base only, 0-1 septate. Apices 3-5 times dichotomously forked in quick succession.

hostplants

Rhamnaceae, monophagous

Rhamnus cathartica, saxatilis.

synonyms

Microsphaera friesei Léveillé, 1851.

references

Braun (1995a), Braun & Cook (2012a), Bresinsky (2016a), Czerniawska (2001a), Dynowska, Fiedorowicz & Kubiak (1999a), Heluta, Hayova, Tykhonenko ao (2010a), Klenke & Scholler (1995a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Ruszkiewicz-Michalska (2006a), Talgø, Sundheim, Gjærum, Herrero, Suthaparan, Topp & Stensvand (2010a).

19/04/2017

mod 4.viii.2017