Many cactus names were added here by members on the basis of DG PlantFiles in the earliest days of our database, before there were any admins checking the validity of names. One of the DG members had a large assortment of cacti and had added all of the names to PlantFiles, but many of the names of his plants became synonyms long ago. A few years ago I cleaned up our entries for the main cactus genera, but some of the lesser-known ones escaped my notice. Please let me know whether you run into any more of these.
