The sterile strip that was present between the two pollen sacs of each anther lobe separates to form a single cavity as the mature anther dries up. The endothecium's variably thickened dead cells contract from their outer thin walls and become concave as a result of water loss. The outer radial walls get closer as a result. As a result, the endothecium shortens and ruptures the anther lobe wall in the vicinity of the stomium. The various organisations collect the exposed spores for pollination.