Syn.: V. hydrela f. lignicola B. de Lesd.

On the roots of Alnus in a river.

Belgium: Ard.: RRR (type locality).

Luxembourg: - .

France: - .

The taxonomic status of this species requires further studies. Thüs & Schultz (2008) consider this name as a synonym of V. sublobulata Servít (1950).

Lit.: BDL3: 34, Breuss (1998: 835), Clauzade & Roux (1985: 815), Zschacke (1933: 258-259).