Plant Parasites of Europe

leafminers, galls and fungi

Melampsora pulcherrima

Melampsora pulcherrima Maire, 1921

on Mercurialis

gall

Aecia pulvinate (not cupulate), mainly on the stem, that may be completely covered over a length of several cm.

spermogonia, aecia

Euphorbiaceae, narrowly monophagous

Mercurialis annua.

Not on M. perennis.


on Populus

Melampsora pulcherrima: paraphyses, urediniospores

Populus alba, from González-Fragoso (1925a): paraphyses, urediniospores

gall

uredinia hypophyllous, causing no discolouration of the leaf, 0.1 mm, golden yellow, pulvinate. Throughout the uredinium stand paraphyses on thin stems that rather gradually widen into a club-like head with especially apically thickened wall. Urediniospores oval, with spines all over; wall of uniform thickness. Telia hypophyllous, 1 mm, dark brown, subpepidermal; teliospores columnar.

uredinia, telia

Salicaceae, narrowly monophagous

Populus alba, canescens.

synonyms

see the discusson under M. pinitorqua.

notes

species from southern Europe.

references

Bahcecioglu & Kabaktepe (2012a), Brandenburger (1985a: 38), European and Mediterranean Plant Protection Organization (2009a), Gäumann (1959a), González-Fragoso (1925a), Klenke & Scholler (2015a), Kruse, Thiel, Frauenberger ao (2019a), Llorens i Villagrasa (1984a), Poelt & Zwetko (1997a), Savchenko, Heluta, Wasser & Nevo (2014c), Vialle, Frey, Hambleton, Bernier & Hamelin (2011a).

Last modified 2.ix.2019