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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0002642
R. H. [Rijksherbarium, Leiden] #30 16 January 1975
Callithamnion polyspermum C.Agardh
Netherlands, Zeeland, Vlissingen, Nederland, Zeeland, Walcheren, Vlissingen, Oranjedijk

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0004453
R. H. [Rijksherbarium, Leiden] #s.n. 16 January 1975
Callithamnion polyspermum C.Agardh
Netherlands, Zeeland, Vlissingen, Vlissingen, Oranjedijk, Walcheren