(Greek, not the spleen; referring to supposed medicinal properties). Polypodidcea A large, widely distributed genus of ferns, containing some 200 species. Easily distinguished by the free veins, and by the elongated sori covered by an indusium, which normally is attached to one side of a vein.

Aspleniums enjoy an abundance of moisture at the roots, but they will turn brown in the winter months in an excessively moist atmosphere. They should be kept in a very lightly shaded position. A good potting material consists of equal parts of rich soil and leaf-mold or peat.