Puccinia senecionis Libert, 1830

on Senecio s.l.

gall

No host plant alternation, no uredinia. Spermogonia scarce, epiphyllous. Aecia cupulate, singular or in small groups. Telia up to 0.5 mm, black, mostly singular, long covered by the epidermis that ruptures pore-like. Spores 2-celled, short-oval, 15-18 x 25-32 µm; wall smooth, of even thickness; pedicel short, hyaline, breaking off.

hostplants

Asteraceae, narrowly oligophagous

Jacobaea vulgaris; Senecio doria subsp. umbrosus, nemorensis, ovatus, sarracenicus.

references

Brandenburger (1985a: 650), Buhr (1965a), Gäumann (1959a), González Fragoso (1924a), Klenke & Scholler (2015a), Negrean (1996b).