EDIT

The automatically created label for a new "literature" description is something like {name of DDS}: Factual data set for {Taxon name}

"Factual data set" is not fully correct. It could be something like "...: Literature data for {Taxon name}"

Also from the matrix perspective it does not make so much sense to put the DDS name in front as all record visible there belong to this dataset. But from the factual data view perspective it may make sense so I have no better idea.

The same issue exists for taxon descriptions holding individual associations created via the matrix. They also use "Factual data set for {Taxon name}" which is too unspecific.

Maybe we could use something like "Specimen used by {name of DDS} for {taxon name}? => DONE

Also we need to think about the existing description relabeling during taxon operations (e.g. syn<->acc swap leads to a new label which has nothing to do with the old label anymore). The new label formatter is defined in the swap function in TaxonService (should be moved to model.format anyway).