Davallia includes the common "Rabbits Foot Fern." This genus now includes many species formerly in other genera. I will sometimes use the older name, since it may be better known.
Ranging from tiny to quite large, there is something for everyone here.
Araiostegia hymenophylloides has large, lacy fronds, said to reach four feet. This fern does well in my warm Florida greenhouse, but is rather difficult to grow well. May lose all leaves in winter.
Davallia fejeensis is quite variable, with many named forms in cultivation. The plant above is of an unknown cultivar, but does well for many growers. Also deciduous.
Davallia parvula is a tiny fern, usually considered a terrarium plant.
Davallia repens is a small plant. Given good humidity, it can be grown mounted, but is best kept in an open basket. The largest leaves seem to develop on plants which are not kept too wet.
Davallia sessilifolia needs a humid environment. The rhizomes can grow fairly long, attached only at the base.