Pyrokinesis was a form of Kinesis. While it did not allow the Mutant to generate or produce fire, they could manipulate preexisting fire. In it's own right, the ability was very powerful should a pre-existing fire source be supplied. The mutant would be able to create powerful beams of fire.
Another form of Pyrokinesis also existed, in this, the mutant would not need a pre-existing source of fire, but rather solar radiation. Converting the radiation into a molten lava like ability, the mutant could use it to coat himself, creating an organic flame. Much like the other form of Pyrokinesis, the mutant could create powerful beams of fire.