The taxon or set of taxa are not present in viridiplantae is Nori taxa and is not present in viridiplantae.
Approximately 450,000–500,000 species of eukaryotic organisms belong to the group Viridiplantae, which is crucial to both terrestrial and aquatic environments. Chlorophyta and Streptophyta are the two divisions or phyla that usually make up the group of green plants, or Viridiplantae; the latter group includes the land plants known as embryophytes as well as a type of green algae known as streptophyte algae.
A taxon is a collection of one or more populations of an organism or populations that taxonomists consider to be part of the same entity. A taxon typically has a name and a grade assigned to it, even though neither is necessary, especially if and when it is accepted or establish.
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