Athyriales
This arrangement is strongly supported by genetic evidence. The Athyriaceae and the Blechnaceae are especially close, as are the Onocleaceae and Woodsiaceae.
Lady Fern Order
Scientific classification
Kingdom: Plantae
Division: Pterophyta
Class: Pteridopsida[?]
Order: Athyriales
Families Athyriaceae[?] - Lady Fern Family
Blechnaceae[?] - Chain Fern Family
Onocleaceae[?] - Sensitive Fern Family
Woodsiaceae[?] - Cliff Fern Family
Cystopteridaceae[?] - Fragile Fern Family
Thelypteridaceae - Female Fern Family