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

Callithamnion polyspermum C.Agardh

Botany

Taxonomy

Algues 191
Callithamnion 191

Specimens registered in collections

Collection Number of specimens (or sets)
Cryptogams (PC) 191

Callithamnion polyspermum Lyngbye

Botany

Callithamnion polyspermum C.Agardh var.

Botany

Callithamnion polyspermum C.Agardh

Zoology

Taxonomy

Algues 47
Callithamnion 47

Specimens registered in collections

Collection Number of specimens (or sets)
Marine Laboratory of Concarneau (CO) 47