Plant Parasites of Europe

leafminers, galls and fungi

Chrysomyxa woroninii

Chrysomyxa woroninii Tranzschel, 1903

on Picea

gall

The fungus is systemic in young shouts. Both the shoot itself and the needles are strongly shortened and swollen to such an extent that the whole gives the impression of an elongated cone. They have got a sweet taste, and even are considered edible in northern Scandinavia. Soon the needles are covered by golden yellow aecia; the copious amount of spores gives the branches a golden hue.

spermogonia, aecia

Pinaceae, monophagous

Picea abies, glauca, mariana, pungens.


on Rhododendron

gall

uredinia on small, witches’ broom-like malformations; telia in spring at the underside of the unfolding leaves. The spores seem not distinguishable from those of Chrysomyxa ledi.

uredinia, telia

Ericaceae, narrowly oligophagous

Rhododendron groenlandicum, tomentosum.

references

Brandenburger (1985a: 20), Buhr (1965a), Coulianos & Holmåsen (1991a), Feau, Vialle, Allaire ao (2011a), Gäumann (1957a), Klenke & Scholler (2015a), Nierhaus-Wunderwald (2000a), Tomasi (2014a).

Last modified 2.iii.2020