Plant Parasites of Europe

leafminers, galls and fungi

Chrysomyxa empetri

Chrysomyxa empetri chröter, 1956

on Picea


Aecia yellow. Needles not deformed, but with broad yellow transverse zones, sometimes almost the whole needle yellowed. Here emerge the up to 3 mm lang pseudoperidia as flatted white tubules. Aeciospores yellow, (27)42(54) x (22)27(32) µm, wall densely and rather coarsely warty.

spermogonia, aecia

Pinaceae, monophagous

Picea abies, glauca, rubens.

on Empetrum


uredinia at the outside of the inrolled leaf, orange; urediniospores orange, in short chains. Telia in spring on the outside of the inrolled leaves, yellow, cushion-shaped, waxy, up to 3 mm long. Teliospores with yellow contents, in chains of 3-6 cells, 19-24 x 18-21 µm.

uredinia, telia

Ericaceae, monophagous

Empetrum hermaphroditum, nigrum.


In Switzerland the fungus almost exclusively occurs in the uredinial/telial stage (Nierhaus-Wunderwald, 2000a).


Brandenburger (1985a: 474), Feau, Vialle, Allaire, ao (2011a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Maier, Wingfield, Mennicken & Wingfield (2007a), Nierhaus-Wunderwald (2000a), Poelt & Zwetko (1997a), Termorshuizen & Swertz (2011a), Woods, Stringer, Evans & Chater (2015a).

Last modified 4.xi.2022