Note: a species resembling in habitus, and probably related to V. hydrela, with a greenish-brown thallus, in section with a black basal layer in fertile areas, ascomata (to 0.4 mm in diam.) covered by a thalline layer, the spherical exciple pigmented only in the ostiolar region, otherwise almost hyaline throughout, 8-spored asci, and ellipsoid, simple ascospores (19-22 × 8-9 μm); on submerged rocks in streams; only known from the type locality in the Eastern Alps (Switzerland).
