Lecanopteris celebica

Ant Fern
Family: Polypodiaceae
Origin: Sulawesi, Indonesia
Caudex

Lecanopteris celebica is a epiphytic fern having swollen hollow rhizomes that provide homes for symbiotic ants. It grow on the branches of trees with lots of water and little to some sun.

Link to this plant:

https://toptropicals.com/catalog/uid/lecanopteris_celebica.htm