Urocystis alopecuri Frank, 1880

on Alopecurus

Urocystis alopecuri on Alopecurus spec.

Alopecurus spec., Belgium, prov. Limbourg, Gerhoeven, de Rammelaars, 31.v.2919 © Carina Van Steenwinkel. Most plants are sterilised by the infection; this is one was an exception.

Urocystis alopecuri on Alopecurus spec.

leaf with linear sori

Urocystis alopecuri on Alopecurus spec.

sorus, still covered by the epidermis

Urocystis alopecuri on Alopecurus spec.

older stage

Urocystis alopecuri on Alopecurus spec.

old sori

Urocystis alopecuri: spore balls

spore balls

Urocystis alopecuri: spore balls

spore balls

gall

Elongated, initially lead grey fungal infestations of the leaves. Later spore balls are formed here. They consist of 2-3 spores, surrounded by a layer of sterile cells.

host plants

Poaceae, monophagous

Alopecurus aequalis, arundinaceus, geniculatus, myosuroides, pratensis.

references

Buhr (1964b), Klenke & Scholler (2015a), Kruse (2014a, 2019a), Lotze-Engelhard (2010a), Redfern & Shirley (2011a), Scholz & Scholz (2013a), Spooner & Leon (2006a), Vánky (1994a).

mod 14.vii.2019