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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0014833
R. H. [Rijksherbarium, Leiden] #40a 21 July 1975
Griffithsia devoniensis Harvey
Netherlands, Zeeland, Reimerswaal, Nederland, Zeeland, Zuid-Beveland, Yerseke.

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0005430
R. H. [Rijksherbarium, Leiden] #s.n. 21 July 1975
Griffithsia devoniensis Harvey
Netherlands, Zeeland, Reimerswaal, Yerseke; Yerseke