Plant Parasites of Europe

leafminers, galls and fungi

Juncorrhiza aschersoniana

Juncorrhiza aschersoniana (Magnus) Riess & Piątek, 2019

on Juncus

Juncorrhiza aschersoniana: tuber

Juncus bufonius, Belgium, prov. Antwerp, Balen, de Most, 1.ix.2020 © Carina Van Steenwinkel: plant with root tubers

Juncorrhiza aschersoniana: tuber

tuber

Juncorrhiza aschersoniana: tuber

fresh tubers are white

Juncorrhiza aschersoniana: spores

spores are formed in “bundles:

Juncorrhiza aschersoniana: spores

detail

Juncorrhiza aschersoniana: spores

immature spores

Juncorrhiza aschersoniana: spores

mature spres

Juncorrhiza aschersoniana: spores

sporen

Juncorrhiza aschersoniana: spores

sporen

Juncorrhiza cf aschersoniana on Juncus bulbosus

Juncus bulbosus, Belgium, prov. Limbourg, Beverlo, Einderse beemden, 9.ix.2020 © Carina Van Steenwinkel: plant with root tubercles

Juncorrhiza cf aschersoniana on Juncus bulbosus

root tubercles (most 1-3 mm, less often 3-6 mm)

Juncorrhiza cf aschersoniana on Juncus bulbosus

older tubercles

Juncorrhiza cf aschersoniana: spores

spores

Juncorrhiza cf aschersoniana: spores

spore

Juncorrhiza cf aschersoniana: spores

spores

Juncorrhiza cf aschersoniana: spores

spores

gall

irregular tubercles, up to a cm in size, attached to the roots; the colour ranges from white to dark brown.

host plants

Juncaceae, monophagous

Juncus bufonius.

Possibly also J. bulbosus, minutulus, squarrosus.

synonyms

Entorrhiza aschersoniana (Magnus) Lagerheim, 1888.

notes

Because the revision by Riess ao did not include material from Juncus bulbosus, the identification of the material pictured above must be provisional.

references

Ainsworth & Sampson (1950a), Bauer, Garnica, Oberwinkler ao (2015a), Buhr (1964b), Chafer & Smith (2018a), Denchev & Denchev (2019a), Dietrich (2013a), Doppelbaur (1973a), Fineran (1973a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kummer (2012a), Redfern & Shirley (2011a), Riess, Schön, Ziegler, ao (2019a), Roskam (2009a), Scholz & Scholz (2013a), Tomasi (2014a), Vánky (1994a), Woods, Chater, Smith ao (2018a).

Last modified 12.ix.2020