[3] The genus was circumscribed by Josef Hafellner in 1989, with Lichenochora thallina assigned as the type species.

[4] Lichenochora fungi form tiny, flask-shaped reproductive structures called perithecia that are typically 0.15-0.3 mm in diameter.

The perithecia are embedded within small swellings or galls that they cause to form in their host lichen's body (thallus).

The genus also has specialised filaments called periphyses around the opening of the perithecia, which often have swollen outer walls and may be slightly brown at the tips.

While these fungi are technically parasites, they typically do not severely damage their host lichens, though they may cause some localised tissue death and discolouration where they grow.