Phragmidium rubi-idaei (de Candolle) Karsten, 1879

on Rubus

Phragmidium rubi-idaei on Rubus idaeus

Rubus idaeus, Belgium, prov. Liège, Büllingen, Vallée de la Holzwarche © Carina Van Steenwinkel

Phragmidium rubi-idaei on Rubus idaeus

same leaf, underside

Phragmidium rubi-idaei on Rubus idaeus

orange uredinia and black telia

Phragmidium rubi-idaei: uredinium

young uredinium, surrounded by paraphyses

Phragmidium rubi-idaei: paraphyses

paraphyses

Phragmidium rubi-idaei: urediniospores

urediniospores

Phragmidium rubi-idaei: young telium

youg telium, equally surrounded by paraphyses

Phragmidium rubi-idaei: telium

telium

Phragmidium rubi-idaei: teliospores

teliospores

Phragmidium rubi-idaei: teliospores

teliospores

Phragmidium rubi-idaei: telium

Rubus idaeus, uit González-Fragoso (1925a): klein telium

Phragmidium rubi-idaei: teliospores

teliospores

gall

no alternation of host plant. Spermogonia near the aecia, between epidermis and cuticula. Aecia epiphyllous, yellow in circular groups, without a peridium but with a circle of hyaline, sausage-shaped curved paraphyses; spores produced in chains, sparsely spinulose. Uredinia hypophyllous, small, 0.2 mm, equally encircled by paraphyses, spores single, pedicellate. Telia hypophyllous black; spores long pedicellate, elliptic, dark brown, transversely divided into c.6, finely verrucose cells, terminated by a blunt papilla; the spore pedicels swell when in contact with water.

hostplants

Rosaceae, narrowly monophagous

Rubus idaeus, spectabilis.

references

Bahcecioglu & Kabaktepe (2012a), Blumer (1946a), Buhr (1965a), Cunningham (1945a), Doppelbauer & Doppelbaur (1973a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Helfer (2005a), Henderson (2000a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Losa España (1942a), Negrean (1997a), Maier, Begerow, Weiß & Oberwinkler (2003a), Petrova & Denchev (2004a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Riegler-Hager (2014a), Ritz, Maier, Oberwinkler & Wissemann (2005a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

pub 27.v.2017 · mod 30.viii.2017