Chrysomyxa empetri chröter, 1956
on Picea
gall
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
gall
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.
notes
In Switzerland the fungus almost exclusively occurs in the uredinial/telial stage (Nierhaus-Wunderwald, 2000a).
references
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).