Fern of Ajibarang:
A fern with broad, yellowish green leaves. ID is requested.

It’s one of the Tectaria species related to T. polymorpha. There are quite a lot of them in SE Asia (as one can see from Prof. Holttum’s book and his paper), but I have a feeling T. devexa might be near – a species that is also grown in some Indian Botanic Gardens (but as an exotic here).
Have a look around the T. devexa sort of area?