When damages, by reason of condemnation, are payable from public funds, the sheriff, or clerk of the district court, as the case may be, shall certify to the officer, board, or commission having power to audit claims for the purchase price of said lands, the amount legally payable to each claimant, and, separately, a detailed statement of the cost legally payable from such public funds. Said officer, board, or commission shall audit said claims, and the warrant-issuing officer shall issue warrants therefor on any funds appropriated therefor, or otherwise legally available for the payment of the same. Warrants shall be drawn in favor of each claimant to whom damages are payable. The warrant in payment of costs shall be issued in favor of the officer certifying thereto.