sentences:  The seed cones are oblong-ovoid to cuboid, 15–25 mm long and 13–20 mm broad, with six (rarely four or eight) scales, each scale bearing a prominent umbo; they are strongly serotinous, not opening to release the seeds until the parent tree is killed by wildfire.This enables heavy seed release to colonize the bare, fire-cleared ground.The pollen cones are 3–4 mm long, and release their pollen in the fall.