Christella patens

Christella patens (Sw.) Holtt.  

Family: Thelypteridaceae

Grid-Scale Mock Maiden Fern

[Aspidium macrourum Kaulf., moreCyclosorus arcuatus (Poir.) Alston, Dryopteris lepida (T. Moore) C. Chr., Dryopteris patens var. glandulosa A. A. Eaton]