''Ceramium'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
Ceramium alga
''Ceramium'' is a genus of Ceramium algae (or Rhodophyta). It is a large genus with at least 15 species in the British Isles.''Maggs, C.A. and Hommersand, M.H.'' 1993. ''Seaweeds of the British Isles. vol.1, Rhodophyta Part 3A Ceramiales.'' HMSO ...
e (or Rhodophyta). It is a large genus with at least 15
species
In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...
in the
British Isles
The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles (O ...
.
[''Maggs, C.A. and Hommersand, M.H.'' 1993. ''Seaweeds of the British Isles. vol.1, Rhodophyta Part 3A Ceramiales.'' HMSO & Natural History Museum, London. ]
The fully