I am requesting the addition of an additional official taxonomic rank in the ICN (“series,” https://www.iapt-taxon.org/nomen/pages/main/art_4.html?zoom_highlight=series) be added to iNaturalist’s taxonomic hierarchy. This will add a finer level of sorting of species, especially in very large genera. In fungi, this will be applicable to genera such as Amanita (amanitaceae.org) and Orbilia (which was recently reorganized: https://www.mnhn.lu/science/monograph-of-orbiliomycetes/?lang=en), but it is useful for vascular plants as well, including the genera Iris (https://doi.org/10.1600/036364409788606316) and Solanum (https://doi.org/10.1600/036364411X553252). Likely, this is applicable to many other genera as well.