Peronospora meconopsidis Mayor, 1958

on Meconopsis. Papaver

gall

infection weak and localised; upperside of the leaf with pale spots. Underside there with a thin greyish-white down of 0.3 mm high erect conidiophores that apically several times are dichotomously branching, each branch ending in a ± globular conidium, > 20 µm. Embedded in the host tissue brown, thick-walled, smooth oospores.

hostplants

Papaveraceae, narrowly oligophagous

Meconopsis betonicifolia, cambrica; Papaver somniferum.

references

Beenken & Senn-Irlet (2016a), Brandenburger (1985a), Jage, Klenke, Kruse ao (2017a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Müller (2015a), Scheuer & Bechter (2012a), Voglmayr, Montes-Borrego & Landa (2014a).

mod 31.vii.2019