Hamel, Alg. France
Hamel, G.G.H. [1-150]

Field Museum of Natural History
Catalog #: C0513833F
A. Hamel- Joukov #s.n. 00 July 1929
Dudresnaya coccinea (C.Agardh) P.L.Crouan & H.M.Crouan
France, Brittany, Ille-et-Vilaine, Saint-Malo

University of Michigan
Catalog #: 651765
A. Hamel-Joukov #s.n. 00 July 1929
Dudresnaya verticillata (Withering) Le Jolis
France, Epave, St-Malo (Ille-et-Vilaine)