Asplenium douglasii

Description

Hemidictyaceae is a family of ferns in the order Polypodiales. Its sole genus is Hemidictyum C.Presl 1836, commonly known as the marginated half net fern. Hemidictyaceae is considered to be a sister family to Aspleniaceae, believed to have diverged during the Cretaceous period.The name Hemidictyum was derived from the terms hemi (half) and diktyon (net), from the veins being netted only half-way across the pinnules.