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on Salix

gall

uredinia mostly hypophyllous, up to 1 mm, orange, with club-like paraphyses; urediniospores elliptic, 12-16 x 26-44 µm, spinulose, but with a smooth apical region. Telia hypophyllous, subepidermal, small, but often confluent to large parts of the surface, brown.

uredinia, telia

Salicaceae, narrowly monophagous

Salix pentandra, “x fragilis” x pentandra.

to some degree also S. x fragilis.

references

Brandenburger (1985a: 18, 44), Buhr (1965a), Ellis & Ellis (1976a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a) Jalkanen (2016a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Poelt & Zwetko (1997a), Scholler & Schubert (1993a), Termorshuizen & Swertz (2011a), Tykhonenko (2010a), Vanderweyen & Fraiture (2007a), Wilson & Henderaon (1966a), Woods, Stringer, Evans & Chater (2015a) Wales.