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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: ncu-a-0013725
Prud'homme van Reine, W. F. #72a 11 August 1976
Goniotrichum alsidii (Zanardini) M.A.Howe
Netherlands, Zeeland, Tholen, Nederland, Zeeland, Tholen, Strijenham

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0002871
Prud'homme van Reine, W. F. #72a 11 August 1976
Stylonema alsidii (Zanardini) K.M.Drew
Netherlands, Zeeland, Tholen, Nederland, Zeeland, Tholen, Strijenham... western side of a breakwater

Field Museum of Natural History
Catalog #: C0503663F
W.F. Prud'homme van Reine #s.n. 11 August 1976
Goniotrichum alsidii (Zanardini) M.A.Howe
Netherlands, Zeeland, Tholen, Strijkenham

University of Michigan
Catalog #: 673214
W.F. Prud'homme van Reine #s.n. 11 August 1976
Stylonema alsidii (Zanardini) K.M.Drew
Netherlands, Zeeland, Tholen, Strijenham