Original: 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.
Simplified: 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.