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

Callithamnion seminudum C.Agardh var.

Botany

Callithamnion seminudum C.Agardh

Botany

Taxonomy

Algues 30
Callithamnion 30

Specimens registered in collections

Collection Number of specimens (or sets)
Cryptogams (PC) 30

Callithamnion seminudum C.Agardh

Zoology