It stores CO2 in the form of malate and was discovered by Hatch and Slack.  
In this process the carboxylase combines with phosphoenolpyruvate to create an oxaloacetate.  It stores CO2 in the form of malate and was discovered by Hatch and Slack.  The involved carboxylase is much more efficient than rubisco and even provides enough CO2 to prevent rubisco from undergoing photorespiration.  It was found that in certain plants, like corn and sugar cane, it works in tandem with the Calvin cycle.  FTP, identify this cycle used in plants to continue photosynthesis, even at night, and which was named for the number of carbons in the central molecule.
In this process the carboxylase combines with phosphoenolpyruvate to create an oxaloacetate.  
C4 cycle (prompt on "CAM")