When any payment of compensation under this chapter shall be due to any public employee, the name of the injured employee, or in case of his death, the names of the persons to whom payment is to be made as his dependents, shall be carried upon the pay roll, and payment shall be made in the same manner and from the same source in which and from which the wages of the injured employee were paid. In event that any extraordinary payment larger than the weekly rate of compensation shall be due, such payment shall be made from any fund available for the maintenance or incidental expenses of the institution, department, board or governing body under and by which the employee was employed.