Marattia Sw.
Mature caudex massive, subglobose; fronds 2-3-pinnate, veins free. Sorus of a double row of sporangia fused into a synangium, oblong, at or near the tips of the veins. Synangium and sporangia dehiscing by a longitudinal slit.
About 60 spp., mainly tropical and subtropical. The N.Z. sp. is said to occur also in Australia, Polynesia, Malaya, Philippine Is, India and S. Africa.