Anarthropteris Copel.
Sori exindusiate, in a single series on each side of main vein, orbicular to subelliptic, with long paraphyses of three rows of cells; spores globose-elliptic. Rhizome creeping, dictyostelic, paleate; stipites not articulated to rhizome; lamina coriac., entire; main vein evident, veinlets hidden, without free veinlets in anastomoses.
Based on the N.Z. plant, also reported from New Hebrides and Vanikoro.