This species, formally known as a variety of H. heterodoxa has just been put on specific rank in 2006.
It's unique for not having a real lid but just a more or less developped rudiment.
The form from Chimanta grows on vertical rock-faces. Pitchers are wider than in the form from Amuri.

H. exappendiculata (Araopan Tepui)

A very nice and colorful plant.