Puccinia septentrionalis Juel, 1895

on Thalictrum

gall

Aecia cupulate, numerous, on swollen, deep purple spots on the petioles and at either sides of the leaves; spores 18-22 µm ø.

spermogonia, aecia

Ranunculaceae, narrowly monophagous

Thalictrum alpinum.


on Bistorta

gall

uredinia hypophyllous, yellow to light brown; spores with 4-5 pores. Telia mainly hypophyllous, dark brown. Teliospores partly already formed in the uredinia; they are two-celled, on a short pedicel; the top cell distally with a conspicuous hyaline papilla.

uredinia, telia

Polygonaceae, monophagous

Bistorta officinalis, vivipara.

references

Blumer (1946a), Brandenburger (1985a: 85, 156), Buhr (1965a), Coulianos & Holmåsen (1991a), Ellis & Ellis (1997a), Gäumann (1959a), González Fragoso (1924a), Henderson (2000a), Klenke & Scholler (2015a), Losa Quintana (1972a), Poelt & Zwetko (1997a), Preece & Hick (1994a), Redfern & Shirley (2011a), Termorshuizen & Swertz (2011a), Wilson & Henderson (1966a).

mod 6.x.2018