Cucumis humofructus:

""Aardvarks are technically carnivores and prefer a strict diet of ants and termites, however they also eat the world's only known underground fruit -bearing cucumber, known as the aardvark cucumber. The cucumber and the aardvark have a symbiotic relationship and chances are neither would exist without the other. Aardvarks eat the fruit for its water content and propagate the seeds through their feces, which are then buried by the animals. Due to the depth of the fruit, the seeds are unable to germinate without assistance, and completely rely on aardvarks to uncover the fruit. ""