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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0015148
Houthuesen, J. #66 11 August 1976
Halidrys siliquosa (Linnaeus) Lyngbye
Netherlands, Zeeland, Tholen, Nederland, Zeeland, Tholen, Strijenham

Field Museum of Natural History
Catalog #: C0521952F
Houthuesen, J. #s.n. 11 August 1976
Halidrys siliquosa (Linnaeus) Lyngbye
Netherlands, Zeeland, Tholen, Nederland, Zeeland, Tholen, Strijenham

University of North Carolina Wilmington, David J. Sieren Herbarium
Catalog #: WNC-A-0002273
R. H. [Rijksherbarium, Leiden] #66 11 August 1976
Halidrys siliquosa (Linnaeus) Lyngbye
Netherlands, Zeeland, Tholen, Nederland, Zeeland, Tholen, Strijenham, eastern side of a breakwater