Synchytrium phegopteridis Juel, 1893

on Phegopteris

gall

tiny, smooth, golden yellow pustules on the leaves and even more the stalks. Each is formed by an infected, swollen cell, surrounded by a high rim of not-infected, yet swollen, cells.

host plants

Thelypteridaceae, Woodsiaceae, narrowly polyphagous

Gymnocarpium robertinanum; Phegopteris connectilis; ? Thelypteris.

references

Brandenburger (1985a: 9), Buhr (1964b), Karling (1964a), Klenke & Scholler (2015a).