Nannfeldtiomyces anomalus (Crowell) Vánky, 1981

on Sparganium

gall

inconspiuous, ill-delimited leaf spots, up to 6 cm in size,, where spore balls, mostly solitary, are embedded in the tissue. The beige spore ball, up to 0.2 mm large, consist of a loose network of hyphae and spores; there is no cortical layer.

host plants

Sparganiaceae, monophagous

Sparganium angustifolium, natans.

The host plant is not quite clear. Vánky cites “Sparganium minimum Wallr. (S. chlorocarpum Rydb.)”. S. minimum is a synonym of S. natans, but S. chlorocarpum is a synonym of S. emersum.

references

Almaraz (1998a), Vánky (1981a, 1994a).

mod 24.iii.2019