Podosphaera filipendulae (Zhao) Liu & Braun, 2010

on Filipendula

Podosphaera filipendulae on Filipendula ulmaria

Filpendula ulmaria, Vlaardingen, Holy-natuurpark © Ben van As

Podosphaera filipendulae on Filipendula ulmaria

Filipendula ulmaria, France, Haute Savoie, Rhône Alpes, Bionnay, 900 m © Arnold Grosscurt

Podosphaera filipendulae on Filipendula ulmaria

detail

Podosphaera filipendulae on Filipendula ulmaria

Filipendula ulmaria, Germany, Harz, Wildemann © Hans Jonkman: galled inflorescence

Podosphaera filipendulae on Filipendiula ulmaria

Filipendia ulmaria, Belgium, prov. Antwerp, Geel, Neerhelst © Carina Van Steenwinkel: fungus on galled part of the stem

Podosphaera filipendulae: conidiophore

conidiophores

Podosphaera filipendulae: conidia with fibrosin bodies

conidia with fibrosoin bodies

gall

mycelium amphigenous, also on stems, white, persistent; infected stems often distorted. Appressoria indistinct. Conidia oval, formed in chains, with fibrosin bodies. Cleistothecia, often in groups, with a single ascus, containing 6-8 spores. Appendages numerous, ± equatorial, 1-5 x the diameter; they are ± stiff, curved, septate, simple, dark brown when mature.

hostplants

Rosaceae, monophagous

Filipendula kamtschatica, ulmaria, vulgaris.

notes

morphologically, the fungus cannot be distinguished from Podosphaera spiraeae, and on this ground it has long been considered synonymous with that species. However, DNA research has demonstrated that two perfectly separated species are involved.

references

Braun Cook (2012a), Bresinsky (2016a), Doppelbaur & Doppelbaur (1973a “Shaerotheca macularis”), Klenke & Scholler (2015a), Kruse (2014a), Scholler, Reinhard & Schubert (1996a [Sphaerotheca spinaeae on Filipendula ulmaria]).

19/04/2017

pub 19.iv.2017 · mod 15.vii.2017