you need to extract the seed from the capsule(gum nut) first the seed is quite fine almost like sand. native trees germinate best with the use of smoke treated products Ie smoke treated vermiculite, smoke water you can make your own by burning leaves with a billy on the fire full of water.
Fill a flat tray with a mixture of coarse sand and peat moss and smooth off surface , sprinkle seeds over the surface and cover with fine sand water with smoked water(make sure its has cooled first) place in warm area with dappled sunlight and water when every day, when seedlings emerge plant into bigger pots or into the garden straight away