An attractive and robust epiphytic fern that seems to have a liking for the leaf bases of palms. This is a rainforest fern but can often be seen in urban parks and on old trees.
In my opinion, one of the distinctive feature of the Goniophlebiums I know is the sori on the underside are deeply embedded in the leaflets and therefore appears as a strong bump on the upperside of the leaflets (more so than species of Nephrolepis).
G. subauriculatum is very similar to its close relative G. percussum, the only very perceivable difference being the shape of the leaflet base. G. subauriculatum has a somewhat auriculate (ear-like) leaflet base while that of G. percussum is rounded.
Leaf Whispering in the Tropics 