Kuehneola uredinis (Link) Arthur, 1906

on Rubus

Kuehneola uredinis: aecia on Rubus fruticosus

Rubus fruticosus, Hilversum: many small aecia on the upperside of the leaf (only)

Kuehneola uredinis on Rubus fruticosus: aecia

magnified

Kuehneola uredinis on Rubus fruticosus: aecia

detail

Kuehneola uredinis on Rubus fruticosus: aeciospores

aeciospores (ø 23 µm)

Kuehneola uredinis: uredinia on Rubus fruticosus

Rubus fruticosus, Loenen (Ge), © Arnold Grosscurt: leaf with uredinia

Kuehneola uredinis: urediniospsoreKuehneola uredinis: urediniospore

urediniospores

Kuehneola uredinis: teliosporesKuehneola uredinis: teliospores

teliospores

Kuehneola uredinis on Rubus fruticosus

Rubus fruticosus, Flevoland, Reve-Abbertbos © Hans Jonkman

Kuehneola uredinis on Rubus fruticosus

same leaf, underside with white telia

Kuehneola uredinis on Rubus fruticosus

detail

Kuehneola uredinis: uredinium

Rubus caesius, from González-Fragoso (1925a): uredinium (section)

gall

Spermogonia epiphyllous subcuticular pustules, 0.2 mm, on red spots. Aecia epiphyllous, yellow. Uredinia hypophyllous, often extending over the entire leaf, often also on the stems and petioles, yellow, similar to the aecia. The uredinia are not surrounded by paraphyses, which distinguishes them from those of the Phragmidium species on bramble. Telia (occurring quite rarely) hypophyllous, pulvinate, yellow or white; spores in chains of c. 5-7 cells.

hostplants

Rosaceae, monophagous

Rubus caesius, canescens, fruticosus, gracilis, hirtus, nemorosus, plicatus, salzmannii, styriacus, ulmifolius, ursinus.

synonyms

Kuehneola albida (Kühn) Magnus, 1899.

references

Bahcecioglu & Kabaktepe (2012a), Buhr (1965a), Dietrich (2016b), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Helfer (2005a), Henderson (2000a), Jage, Klenke, Kruse oo (2016a), Jage, Kruse, Kummer ao (2013a), Jørstad (1953a), Klenke & Scholler (2014a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Maier, Begerow, Weiß & Oberwinkler (2003a), Melzer, Pittoni, Poelt & Scheuer (1984a), Petrova & Denchev (2004a), Poelt & Zwetko (1997a), Redfern & Shirley (2011a), Ritz, Maier, Oberwinkler & Wissemann (2005a), Schmid-Heckel (1985a), Schön (2014a), Spooner & Butterfill (1999a), Termorshuizen & Swertz (2011a), Tomasi (2014a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

24/04/2017

mod 15.ix.2017