Juncorrhiza aschersoniana (Magnus) Riess & Piątek, 2019

on Juncus

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

tuber

fresh tubers are white

spores are formed in “bundles:

detail

immature spores

mature spres

sporen

sporen

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

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

older tubercles

spores

spore

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).