This Aroid from Ecuador is most unusual because at the end of the leaf is a small pouch with an attached tail. In the definitive book on the subject of Aroids by Deni Bown (Aroids :Plants of the Arum Family. Timber Press 2000) it is called "a would-be carnivorous Aroid" because this pouch is thought to have served the purpose of catching food not unlike the "pitchers" of insectivorous plants.In the garden it is winter dormant but makes quick growth once the weather warms up unfurling leaves with wonderful colouring of blue grey green with bands of white and grey.
2017 update: I no longer have this plant and would love to get it again. I have found that many of the aroids rot during cold wet winter conditions.