Plant Parasites of Europe

leafminers, galls and fungi

Podosphaera myrtillina var. myrtillina

Podosphaera myrtillina var. myrtillina (Schubert) Kunze, 1823

on Vaccinium

Podosphaera myrtillina var. myrtillina on Vaccinium myrtillus

Vaccinium myrtillus, Belgium, prov. Flemish Brabant, Averbode, Bos en Heide © Carina Van Steenwinkel: the mycelium has already disappeared

Podosphaera myrtillina var. myrtillina

two cleistothecia …

Podosphaera myrtillina var. myrtillina

… containing a single ascus …

Podosphaera myrtillina var. myrtillina

… with eight spores

Podosphaera myrtillina var. myrtillina

appendage

gall

mycelium amphigenous, thin, evanescent. Appressoria poorly developed to nipple-shaped. Conidia short-oval, formed in chains, with fibrosin bodies. Cleistothecia 70-90 µm, with a single ascus, containing 8 spores. Appendages 5-8, ± equatorial, 1.5-6 x the diameter; they are rather stiff, almost straight, largely brown, 2-8 septate; at the very tip they are several times dichotomously branching in quick succession.

host plants

Ericaceae, monophagous

Vaccinium x intermedium, myrtillus, oxycoccos, uliginosum, vitis-idaea.

references

Braun (1995a), Braun & Cook (2012a), Jage, Klenke, Kruse ao (2016a), Jage, Klenke & Kummer (2010a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Scholler, Reinhard & Schubert (1996a).

Last modified 6.ix.2019