Actually SJP, you are talking about the Genus Nepenthes. They grow all over SE Asia, in the phillipenes, thailand, borneo, malaysia, India. I have seen pictures taken by friends of mine from travels in Borneo- Nepenthes ampullaria "dumplings" are fairly common in markets and are made exactly as you describe.
The giant Nepenthes are indeed endangered and many species are gone from the wild, but people like myself grow them and there are several attempts underway to breed stock with good genetic variability for re-introduction into the wild (most of the "extinct" species were destroyed by habitat destruction)
The giant Nepenthes are indeed endangered and many species are gone from the wild, but people like myself grow them and there are several attempts underway to breed stock with good genetic variability for re-introduction into the wild (most of the "extinct" species were destroyed by habitat destruction)