Some nice color changing plants in the Crassulaceae
This plant has a rather complicated name. Athyrium felix-femina has two varieties, angustum and asplenoides. The former is usually found in the north, while the latter is found in the south. A particular form, a mutation probably, of A. angustum was found in Vermont, with bright red stipes instead of the usual green ones, named'rubellum'.
My specimen is a little unsightly now due to the directional light it receives, but it should open up more over the summer. You can see all the little green dots forming on the underside of the fronds, those are the insidium covering up the sori, which will emerge as they grow larger as a nice brown color.
Adiantum is a nice genus in the Brake Fern family.
Asplenium
Cheilanthes are a group of ferns called the "lip ferns". The edges of their pinnules curve downward to form a lip, to protect their spores.
Astrolepis a.k.a. the star-scaled cloak ferns. A. sinuata is known as the Wavy Cloak Fern.
Commonly known as Rabbit foot fern, deer's foot fern, etc., Davallia are great houseplants, with their interesting rhizomes and finely dissected fronds.
