The bladderwort Utricularia humboldtii Schomb. is an extraordinary plant in an extraordinary genus. It is a plant both well known and greatly desired by carnivorous plant horticulturists because of its enormous leaves and spectacular flowers; some growers even value it for its especially large bladders. Those interested in the natural history of carnivorous plants delight in its frequent occurrence within the water-filled urns of large bromeliads, including Brocchinia reducta, which may itself be carnivorous (Rice 2006).