The name Dryopteris filix-mas forma incisa is attributed by various authors to (Moore) Hayek, Flora von Steiermark. Hayek, however, in this Flora doesn't explicitly mention the rank, but transfers the variety incisa to the genus Dryopteris: "γ <gamma> incisa (Moore) Hay." Am right to think that this does not constititue a status change from var to forma? The listing of subtaxa under filix-mas is introduced by the sentence: "Nach dem Grade der Blatteilung kann man folgende Formen unterscheiden:" (according to the degree of incissions, the following forms may be discerned). The German word "Form" includes forma, no doubt, but is more generic than that, and used in a generic sense elsewhere in the text.