@barbaraparris @naufalurfi I'm starting to make the taxonomy changes to split our current Pronephrium sensu Holttum according to the classification of Fawcett & Smith. This is going to bump genus-level identifications of Pronephrium up to Thelypteridoideae, which will make them a bit harder to find. I suspect most of our remaining genus-level observations cannot be determined to species on the basis of the photographs shown, but I thought I would let you know in case you wanted to take a closer look at any of them before I start committing taxon swaps.