Btw the blooms of the monstrose form of Epi phyllanthus/Curly Locks do look similar to the Epi phyllanthus var. phyllanthus, ( I have posted my plant here) although the tube is not quite as long. And they only last one night also.
Btw 2 looking at the seed pod in your original post - phyllanthus var phyllanthus is on occasion cleistogamous.
Some years ago we tasted the seed pod of Epi phyllanthus var. phyllanthus, one is reminded of a Dragon fruit, but it is pretty bland. Think of "sugar water with seeds". We tolerated it without a problem, but I would say, Apples taste better!
I suppose if I am stranded on a desert Island without food, I would carefully eat those.
