Thelidium dactyloideum Arnold
Lichenised. Poorly known taxon.
Substrate: calciferous rocks
Altitudinal distribution:
Note: a species with a thin, brownish thallus, minute perithecia protruding only with the ostiolar region, a carbonaceus ascomatal wall, and finger-like, 1- to 3-septate ascospores turning brown with age; on limestone in the montane belt; only known from the Eastern Alps (Slovenia).
