Melampsora euonymi-caprearum Klebahn, 1900

on Euonymus

Melampsora euonymi-caprearum on Euonymus europaeus

Euonymus europaeus, Beuningen © Arnold Grosscurt

Melampsora euonymi-caprearum: aecia

underside of the leaf with aecia

Melampsora euonymi-caprearum spermogonia

at the upper side the spermogonia

Melampsora euonymi-caprearum gall

Euonymus europaeus, Castricum

Melampsora euonymi-caprearum aecia

underside of the leaf with aecia

gall

spermogonia and aecia mostly hypophyllous. Aecia on yellow spots, flat, without a peridium, often in circles, yellow-orange, 1-2 mm.

spermogonia, aecia

Celastraceae, monophagous

Euonymus europaeus, latifolius, verrucosus.


on Salix

gall

uredinia 0.5 mm, yellow, hypophyllous, on especially at the upperside discoloured leaf spots, with club-shaped paraphyses of which the wall apically is strongly thickened; spores 14-17 x 14-19 µm, wall spinulose, 2-4 µm thick. Telia usually hypophyllous, subepidermal, brownish; spores pillar-shaped.

uredinia, telia

Salicaceae, narrowly monophagous

Salix aurita, caprea, cinerea, elaeagnos, myrtilloiddes.

synonyms

conceived by some authors as component of one complex species with aecia on a wide range of hosts, and uredinia and telia on Salix: Melampsora epitea.

references

Brandenburger (1985a: 45, 882), Buhr (1964b), Gäunann (1959a), González-Fragoso (1925a), Klenke & Scholler (2015a), Poelt & Zwetko (1997a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tomasi (2003a).

mod 25.ii.2018