Schizogenous$(Schizein,\$to split) cavities are formed by the splitting up of common walls and the separation of masses of cells from one another. Inter-cellular spaces and these cavities form an inter-communicating system so, that gases and liquids can easily diffuse from one part of the plant body of the other. Most resin-ducts in plants especially gymnosperms, oil ducts (sunflower) are schizogenous cavities.