I suspect that this is the species Goniophlebium (Polypodium) pseudoconnatum (Mindanao), but officially this taxon name is not correctly resolved. I think it will eventually be accepted. For now, Goniophlebium subauriculatum, which has a wider geographical distribution (Laos, Burma ...) can accommodate taxonomically, the specimen of this observation.
See links: http://www.fernsoftheworld.com/2014/07/01/goniophlebium-pseudoconnatum/
http://www.theplantlist.org/tpl/record/ifn-43409