 Seed dispersal is only limited.In an experiment, seeds on average were moved about 2 m (6½ ft) and at most about 10 m. The absence or presence of the elaiosome did not effect the germination rate, but a field trial showed that seeds without elaiosome almost never survive a fire, whereas those with elaiosome all germinated, implying that the burial of the seed by the ants is essential.