Plant Parasites of Europe

leafminers, galls and fungi

Uromyces dactylidis

Uromyces dactylidis Otth, 1861

on Ranunculus


See Aecidium ranunculi-acris.

spermogonia, aecia

Ranunculaceae, broadly monophagous

Ficaria verna subsp. ficariiformis; Ranunculus aconitifolius, acris, alpestris, amplexicaulis, auricomus, bulbosus & subsp. aleae, bullatus, carpaticus, cassubicus, flammula, glaber, glacials, illyricus, lanuginosus, lingua, macrophyllus, montanus, oxyspermus, paludosus, platanifolius, polyanthemos & subsp. nemorosus, psilostachys, pyrenaeus & subsp. angustifolius, repens, reptans, sardous, sceleratus.

on Poaceae

Uromyces dactylidis: uredinia on Dactylis glomerata

Dactylis glomerata, Nieuwendam: uredinia on the leaf sheath

Uromyces dactylidis: urediniospores

there are no paraphyses in the uredinium

Uromyces dactylidis: urediniospore

the urediniospores often have a thickened rim around the pores

Uromyces dactylidis: uredinia and telia on Dactylis glomerata

Dactylis glomerata, Well (Li.): uredinia and telia

Uromyces dactylidis: urediniospores


Uromyces dactylidis: teliospores



Uredinia amphigenous, yellowish brown, without paraphyses (rarely thin-walled ones); spores finely spinulose, with 4-9 dispersed pores, that often have a thickened rim. Telia hypophyllous, long covered by the epidermis, shining brown; they are surrounded and divided in compartments by brown paraphyses. Teliospores initially formed in the uredinia, later in the newly formed telia; they are one-celled, pyriform, with a smooth, apically somewhat thickened wall; pedicel at least as long as the spore.

uredinia, telia

Poaceae, oligophagous

Cynosurus cristatus, echinatus, elegans; Dactylis glomerata & subsp. hispanica + juncinella; Poa bulbosa.


Uromyces phyllachoroides Hennings, 1901.


Bahçecioğlu & Kabaktepe (2012a), Brandenburger (1985a: 152, 755, 757, 761), Buhr (1965a), Doppelbaur (1968a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Hrabětová, Kolařík & Marková (2015a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Korytnianska & Popova (2012a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a, 2019a), Liu & Hamilton (2010a, 2013a), Liu, Szabob, Hambleton, Anikster & Kolmer (2013a), Maier, Wingfield, Mennicken & Wingfield (2007a), Marková & Urban (1988a), Negrean (1996b, 1997a) Negrean & Denchev (2000a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Roskam (2009a, 2019a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Unamuno (1941a,b), Vanderweyen & Fraiture (2008a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a), Zwetko & Blanz (2012a).

Last modified 8.xii.2022