Schizothyrioma ptarmicae (Desmazières) Höhnel, 1917

Fungi, Ascomycota, Leotiomycetes, Helotiales

on Achillea

gall

shining black, less than a mm long elliptic blisters on the stems and undersides of the leaves. They split open, exposing a reddish- or greyish-brown layer of asci. The asci contain 2 (less often up to 6) spores. Spores hyaline, 1-septate, 3-5 x 8-14 µm.

hostplants

Asteraceae, narrowly monophagous

Achillea ptarmica.

references

Ellis & Ellis (1997a), Kruse (2014a), Richter (2003a).

18/09/2014