Lomariopsis japurensis . A. Union of pinna and rachis, showing the articulation. B. Sterile and fertile leaves. C. Free veins. D. Stem in cross section; not the elongated ventral vascular bundle.

Lomariopsis japurensis . Costa Rica (Photo R. Moran)

Lomariopsis japurensis, adaxial surface showing medial pinnae, free veins. (Photo R. Moran)

Lomariopsis japurensis spore. (Photo by J. G. Hanks and R. Moran)

Lomariopsis japurensis . La Selva Biological Station, Costa Rica. (Photo R. Moran)