Puccinia phragmitis (Schumacher) Körnicke, 1876

on Rumex

Puccinia phragmitis galls

Rumex obtusifolius, Dronten, 5.v.2010 © Arnold Grosscurt

Puccinia phragmitis galls

aecia at the underside of the leaf

Puccinia phragmitis: aecium on Rumex acetosa

Rumex acetosa, Nieuwendam, 5.vi.2013: aecium

Puccinia phragmitis: aeciospores

aeciospores

Puccinia phragmitis: aecia on Rumex spec.

Rumex spec., Hungary, Halászi, 21.vii.2019 © László Érsek: uderside of a leaf, with groups of young aecia

Puccinia phragmitis: aecia on Rumex spec.

group of young aecia

Puccinia phragmitis: aecia on Rumex spec.

emptied aecia

Puccinia phragmitis: aecia on Rumex spec.

transverse section

spermogonia, aecia

Polygonaceae, oligophagous

Rheum compactum, hybridum, officinale, palmatum, rhabarbarum, tataricum;
Rumex acetosa, acetosella, alpinus, arifolius, altissimus, aquaticus, britannicus, bucephalophorus, confertus, conglomeratus, crispus, x heterophyllus, hybridus, hydrolapathum, japonicus, longifolius, maritimus, mexicanus, obtusifolius, patientia, pseudonatronatus, sanguineus, thyrsiflorus.

Also indicated (not by Gäumann) as host plant are Bistorta officinalis, Fallopia convolvulus; Persicaria maculosa


on Phragmites

Puccinia phragmitis on Phragmites australis

Phragmites australis, Hungary, Halászi, 25.iv.2019 © László Érsek

Puccinia phragmitis: uredinia and telia

uredinia (brown) and telia (black)

Puccinia phragmitis: uredinia on Phragmites australis

Phragmites australis, Amsterdam Noord, JH Vliegenbos, 19.vii.2013: uredinia

Phragmites australis: uredinium

Phragmites australis, Nieuwendam, 3.vi.2017: leaf spot with uredinium

Puccinia phragmitis: urediniospores

urediniospores with thick but uniform wall

Puccinia phragmitis: urediniospores

four equatorial pores (three visible, and in the lower spores not so perfectly equatorial)

Puccinia phragmitis: urediniospores

sculpture

Puccinia phragmitis: uredinia on Phragmites australis

Phragmites australis, Nieuwendam, 19.vi.2013: the uredinia rupture the upper and lower epidermis equally; note the yellow stripes running towards the blade’s tip

Puccinia phragmitis: urediniospores

the urediniospores have an unusually thick wall and are coarsely verrucose.

Puccinia phragmitis: urediniosporePuccinia phragmitis: urediniospore

the germination pores (recognisable as light spots) are equatorially positioned

Puccinia phragmitis: uredinia and telia

uredinia and telia, golden brown and blackish brown, respectively

Puccinia phragmitis: teliospores

teliospores

Puccinia phragmitis: teliospore with its pedicel

they have a long pedicel

Puccinia phragmitis: teliospores on Phragmites australis

Phragmites australis, Belgium, prov. Antwerp, Balen, Scheps, 8.ix.2015 © Carina Van Steenwinkel

gall

Uredinia amphigenous, often in rows, rather large, powdery, brown, without paraphyses; spores with a thick wall (3-4 µm), 4 pores. Tela as the uredinia but up to 1 cm long; spores two-celled; pedicel up to 200 µm long, persistent.

uredinia, telia

Poaceae, oligophagous

Arundo donax; Phragmites australis.

synonyms

Puccinia trailii Plowright, 1889.

inquilines

Eudarluca caricis parasitises on the uredinia.

references

Brandenburger (1985a: 88, 90, 822), Buhr (1965a), Deckert & Deckert (2016a), Dietrich (2013a), Ellis & Ellis (1997a), Gäumann (1959a), Gönczö & Révay (1981a), González Fragoso (1924a), Henderson (2000a, 2004a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Koops (2013a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Llorens i Villagrasa (1984a), Pellicier (2001a), Poelt & Zwetko (1991a, 1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Roskam (2009a), Van Ryckegem (2005a), Savchenko, Heluta, Wasser & Nevo (2014d), Săvulescu & Rayss (1935a), Scholler, Reinhard & Schubert (1996a), Termorshuizen & Swertz (2011a), Tomasi (2014a), Tóth (1994a), Unamuno (1941b), Vanderweyen & Fraiture (2011a), Woods, Stringer, Evans & Chater (2015a).

mod 17.viii.2019