In others , the fire climax pines ( e.g. Monterey Pine , Pond Pine ) , the seeds are stored in closed cones for many years until a forest fire kills the parent tree ; the cones are opened by the heat and the stored seeds are then released in huge numbers to re-populate the burnt ground . In others , the fire climax pines ( e.g. Monterey Pine , Pond Pine ) , the seeds are stored in closed ( `` serotinous '' ) cones for many years until a forest fire kills the parent tree ; the cones are also opened by the heat and the stored seeds are then released in huge numbers to re-populate the burnt ground .