Adiantaceae
Sori superficial, marginal to submarginal, sts confluent; protected by margin of lamina, rarely unprotected, exindusiate. Sporangia mostly large, shortly stalked, without paraphyses; pedicels slender. Annulus with stomium. Spores tetrahedral, ± globose, smooth to spinulose. Rhizome solenostelic, creeping or short and oblique forming a small stock. Paleae us. present, and often hairs. Stipes not jointed to rhizome. Fronds pinnatifid to pinnately compound. About 12 genera of mostly terrestrial ferns.
