The securities and investments of each trust committed to any such entity so licensed shall be set apart and segregated and shall not be mingled with the securities and investments of any other trust or of the entity. Any undistributed or temporarily uninvested cash held by such entity as trustee shall be deposited in the name of the trust or in the name of the entity as trustee in a bank, provided, when any such undistributed or uninvested cash is deposited in the name of the entity as trustee, such deposits shall be so identified on the books of the entity as to disclose the beneficial ownership thereof.