Several names share this combination and are defined under the rules of the botanical code. The species name Callithamnion roseum might be an homonymy case.
The name Callithamnion roseum is a slight homonymy case. This name is used according to the rules of several different nomenclatural codes.

Callithamnion roseum (Roth) Lyngbye

Botany

Taxonomy

Algues 199
Callithamnion 199

199 Specimens registered in collections

Collection Number of specimens (or sets)
Cryptogams (PC) 198
Vascular plants (P) 1

Callithamnion roseum Harv.

Botany

Taxonomy

Algues 1
Callithamnion 1

Specimens registered in collections

Collection Number of specimens (or sets)
Cryptogams (PC) 1

Callithamnion roseum Schousb.

Botany

Callithamnion roseum (Roth) Harv.

Zoology

Taxonomy

Algues 37
Callithamnion 37

Specimens registered in collections

Collection Number of specimens (or sets)
Marine Laboratory of Concarneau (CO) 37

Callithamnion roseum C.Agardh

Zoology

Taxonomy

Algues 6
Callithamnion 6

Specimens registered in collections

Collection Number of specimens (or sets)
Marine Laboratory of Concarneau (CO) 6

Callithamnion roseum Schousb.

Zoology