Puccinia circaeae Persoon, 1794
on Circaea
Circaea lutetiana, Belgium, Bruxelles, Audeghem, 29.viii.2020 © Arthur Vanderweyen
Circaea lutetiana, Zwolle-Zuid, 3.vii.2018 © Arnold Grosscurt, population under pressure by Puccinina circaeae and Erysiphe circaea
leaf (underside) with telia of the soon-germinating type
telia of the late-germinating type
telium of the late-germinating type
telium of the late-germinating type
some telia at the underside of the lamina ar strongly enlarged. Perhaps they are late-germinating, but they also might be parasitised.
Circaea lutetiana, Houthem-St. Gerlach: upperside of the leaf
underside
telia, some with a greyish hue of basidia and basidiospores, formed by the early-germinating teliospores
detail
teliospores
teliospore (length, without the roughly equally long stalk, 42 µm)
Circaea lutetiana, Belgium, prov Namur, Doische, Petit-Doische, RAVeL: upperside of a leaf © Stéphane Claerebout
group of hypophyllous telia
gall
No host plant alternation, only telia. Most telia, at the underside of the leaves, germinate almost immediately, recognisable as a grey hue on top of the telium. A second type of telium, darker brown and formed at the underside of the midrib, on petioles and stems. contains spores that germinate only after hibernation.
host plants
Onagraceae, monophagous
Circaea alpina & subsp. pacifica, erubescens, x intermedia, lutetiana.
references
Afshan, Khalid & Niazi (2012a), Bahçecioğlu & Kabaktepe (2012a), Brandenburger (1985a: 411), Buhr (1964b), Ellis & Ellis (1997a), Gjaerum (1986a), González Fragoso (1924a), Henderson (2000a, 2004a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Kruse, Thiel, Frauenberger ao (2019a), Ludwig (1974a), Maier, Wingfield, Mennicken & Wingfield (2007a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Roskam (2009a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tóth (1994a), Vanderweyen & Fraiture (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).