I my N. Tobiaca has the same kind of pitchers almost. It would be cool if some one make a site were you can combine multiple hybrids and there would be a picture that would show up as a that hybrid it would make guessing so much easer.
The last pitcher my N. Tobiaca sent looked like a little N. Lowii pitcher so if you combine N. Tobica upper pitchers and you plant is so big it is already making upper pitcher since the lower basal shoot looks like nothing like the bigger pitcher it is a lower pitcher. So combine ventricosa that the presome is more in not like a tobiaca pitcher It would look like you pitcher that you have on that plant.