Plant Parasites of Europe

leafminers, galls and fungi

Melampsorella symphyti

Melampsorella symphyti Bubák, 1903

on Abies

gall

spermogia and aecia hypophyllous in the current year’s needles. Aecia in two rows, rather widely spaced (never more than 16 in a row); peridium less than a mm high. Aeciospores densely covered by small high warts; contents orange-yellow.

spermogonia, aecia

Pinaceae, monophagous

Abies alba.


on Symphytum

Melampsorella symphyti on Symphytum officinale

Symphytum officinale, Belgium, prov. Hainaut, Laplaigne © Stéphane Claerebout: diseased plant

Melampsorella symphyti gall

Symphytum officinale, Dronten; © Arnold Grosscurt

Melampsorella symphyti uredinia

underside of the leaf, with uredinia

Melampsorella symphyti uredinia

Symphytum officinale, Belgium, prov. Hainaut, Papignies: uredinia; © Jean-Yves Baugnée, det Arthur Vanderweyen

Melampsorella symphyti: urediniospore

Symphytum officinale, Nieuwendam: urediniospore

gall

Teliospores are formed intracellulary in the lower epidermis.

uredinia, telia

Boraginaceae, oligophagous

Omphalodes lusitanica; Symphytum asperum, bulbosum, cordatum, ibericum, officinale, peregrinum, tauricum, tuberosum, x uplandicum.

synonyms

Pucciniastrum symphyti (de Candolle) McKenzie & Padamsee, 2014; Thekopsora symphyti (de Candolle) Müller, 2010.

notes

Contrary to the related Melampsorella caryophyllacearum, in Abies the mycelium is restricted to the needles; it does not hibernate, and does not cause witches’ brooms either. But in Symphytum the mycelium is systemic indeed; it hibernates in the rhizome.

references

Brandenburger (1985a: 15), Buhr (1965a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Klenke & Scholler (2015a), Kruse (2019a), Losa España (1944a), Maier, Begerow, Weiß & Oberwinkler (2003a), Mułenko, Sałata & Wołczańska (1995a), Scheuer & Bechter (2012a), Scholler & Schubert (1993a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

Last modified 5.ix.2019