ADIANTUM

(from adiantos, dry, as if plunged in water it yet remains dry). Maidenhair. O RD. Filices. A large genus of handsome tropical and temperate ferns. Sori marginal, varying in shape from globose to linear, usually numerous and distinct, sometimes confluent and continuous. Involucre the same shape as the sorus, formed of the reflexed margin of the fronds, bearing the capsules on its upper side. None of the Adiantums are truly hardy except the American A. pedatum; even our own native species requires protection. The chief requirements of this handsome genus of ferns are good drainage, and a compost of fibrous peat, loam and sand. In most cases, plenty of pot room is e ential, and a larger quantity of loam will be needed for strong-growing sorts. For general culture, see Ferns.