Only a third of Fusarium oxysporum formae speciales are monophyletic: a per-label and per-deposit audit of 363 public genomes
By auditing 363 public *Fusarium oxysporum* genomes, this study reveals that only one-third of formae speciales are monophyletic and that the current classification system is plagued by significant phylogenetic conflicts, taxonomic redundancy, and mislabeled or non-target genomes, arguing that *forma specialis* should be treated as an operational pathological category requiring independent evidence rather than a phylogenetic one.