Hey, that looks a lot like one of my "Unnamed N. maxima hybrids" but my plant is bigger than the one in the photo. It's about 16" across/ 5" pitchers a more developed peristome and slightly peltate tendril insertion on the leaves (about 1 cm in from the tip). Mine will only pitcher in high heat terrariums above 85*F during the daytime and it does even better in the summer when the ultra lowland tank (with bottom heat) goes over 95*F during the day. I tried cuttings of this guy in intermediate and highland tanks and it just sulked and put out a leaf every couple months with a blackened tendril. Mine does do a lot better since I let it's pot sit in a tray with an inch of water in it. I let it dry up a few days before refilling. I never do this with neps but it seems to be one of thekeys for this one.
A rather finicky hybrid from my experience if indeed it is the same, mine was sold labeled "Nepenthes" at a garden center. This bugger took me a year to get it pitchering. [img]http://www.**********.com/iB_html/non-cgi/emoticons/mad.gif[/img]
Anybody know how big the pitchers will eventually get?