Linum catharticum, Belgium, prov. Namur, Phillippeville (Cerfontaine), RN du Carrière des Vaulx © Stéphane Claerebout

gall

no host alternation. Only uredinia and telia. Uredinia amphigenous, for a short wile covered by an evanescent peridium, yellow with clavate paraphyses. Telia amphigenous, subepidermal or subcuticular, brown to black crusts, consisting of a single layer of columnar spores.

host plants

Linaceae, narrowly monophagous

Linum catharticum.

synonyms

Many authors, and also the Index Fungorum (2017) consider M. lini and M. linperda conspecific.

notes

the British mycologist Grove discovered in Wales in 1936 a Melampsora on Radiola linoides, and provisionally identified it as “Melampsora lini var. radiolae”. The discovery was never formally published and the name is not available. The fungus has never been found again and is assumed to be extinct (Woods ao, Nigel Stringer in litt.).

references

Beltran Tejera (1976a), Brandenurger (1985a: 335), Buhr (1964b), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kruse (2019a), Lawrence, Dodds & Ellis (2007a), Marková & Urban (1988a), Mułenko, Sałata & Wołczańska (1995a), Negrean (1996a,b), Poelt & Zwetko (1997a), Ruszkiewicz-Michalska (2006a), Savchenko, Heluta, Wasser & Nevo (2014c), Savchenko, Wasser, Heluta & Nevo (2019a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a), Tóth (1994a), Tykhonenko (2010a), Unamuno (1941b, 1942a), Vanderweyen & Fraiture (2007a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).