Puccinia veronicarum de Candolle, 1805

on Veronica

Puccinia veronicarum on Veronica montana

Veronica montana, GD Luxembourg, Hollenfels © Sébastien Carbonelle

Puccinia veronicarum on Veronica montana

underside of a leaf with telia

Puccinia veronicarum on Veronica ? chamaedrys

Veronica ? chamaedrys, Nieuwendam

Puccinia veronicarum, telia on Veronica ? chamaedrys

telia, at the underside of the leaf

23115_1

Veronica montana, Nieuwendam: all plants of the population were infected from the root collar up.

Puccinia veronicarum: teliospores (germinating)

teliospores: the middle one is germinating

gall

no host plant alternation, only hypophyllous telia. The fungus is systemic. The telia consist of a dark brown centre where hibernating spores are formed, surrounded by a lighter zone where spores are formed that germinate immediately. The hibernating spores have a comparatively thick, brown wall and deciduous pedicel; the soon hibernating spores have a thinner, yellowish to hyaline wall and a more persistent pedicel.

hostplants

Plantaginaceae, monophagous

Veronica bachofenii, “latifolia”, montana, officinalis, ponae, prostrata, serpyllifolia, urticifolia.

references

Blumer (1946a), Brandenburger (1985a: 577), Gäumann (1959a), González Fragoso (1924a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Schmid-Heckel (1985a), Vanderweyen & Fraiture (2011a).

mod 15.ix.2017