Peronospora minor (Caspary) Gäumann, 1918

on Atriplex

gall

leaves disfigured and swollen covered by a dirty greyish-white fungal down. It consists of erect, apically several times branched conidiophores with oval colourless conidia.

hostplants

Amaranthaceae, nauw monophagous

Atriplex glabriuscula, halimus, hortensis, oblongifolia, patula, prostrata, rosea, sagittata, tatarica.

synonyms

Peronospora atriplicis-hortensis Săvulescu & Rayss, 1932; P. atriplicis-tataricae Oescu & Rădulescu, 1933; P. nitens Oescu & Rădulescu, 1933; P. tatarica Săvulescu & Rayss, 1932.

The Index Fungorum (2013) states that minor is a junior synonym of P. arborescens, according to the older literature a parasite of Papaver and its close relative Meconopsis, on the base of the revision by Voglmayr ao (2014) of P. rhoeas alone. These genera stand so far removed from Atriplex that the synonymy is unlikely.

references

Brandenburger (1985a: 116), Buhr (1964b), Doppelbaur & Doppelbaur (1974a), Doppelbaur, Huber & Poelt (1965a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2016a, 2017a), Klenke & Scholler (2015a), Müller (2015a), Müller & Kokeš (2008a), Săvulescu (1948a).

mod 1.ix.2018