Physoderma negeri Karling, 1950

on Euphrasia

gall

semiglobular, greenish warts, up to 1 mm, on the strongly disfigured leaves and stems, especially just above the ground. The plants are definitely stunted, leaves and stems are disfigured.

host plants

Orobanchaceae, narrowly oligophagous

Euphrasia “officinalis”; Odontites vulgaris.

references

Brandenburger (1985a: 565), Buhr (1964b), Klenke & Scholler (2015a), Tomasi (2014a).