Physochila silesiaca (Kotulla, 1936) Kosakyan et al. 2023
Basionym: Nebela silesiaca Kotulla, 1936

Diagnosis: Shell sac-shaped, with many irregular bumps that vary in size and number from individual to individual. The neck ends in a clearly defined collar. It first bends outwards at a sharp angle and then bends inwards in an even arc where it ends against the inside of the neck. The collar has a drop-shaped or round cross-section.

Dimensions: Height 75-84 µm.

Habitat: Sphagnum. Central Europe.