RijksHerbarium & Delta Institute for Hydrobiological Research [? - ?]

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0010718
R. H. [Rijksherbarium, Leiden] #19 15 January 1975
Dumontia contorta (S.G.Gmelin) Ruprecht
Netherlands, Zeeland, Schouwen-Duiveland, Nederland, Zeeland, Schouwen, Scharendijke

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0003185
R. H. [Rijksherbarium, Leiden] #s.n. 15 January 1975
Dumontia incrassata (O.F.Müller) J.V.Lamouroux
Netherlands, Zeeland, Schouwen-Duiveland, Schouwen, Scharendijke