Oesterr. Bot. Z.
[The Lister monograph cites it as a synonym. If this is correct, the name has priority over the combination D. minus (Lister) Morgan, but it is not certain that it belongs here (apud Martin & Alexopoulos, Myxomycetes 393. 1969)]
[pdf from Biodiversity Heritage Library]
This name is a synonym of:
Didymium minus (Lister) Morgan