A declaration of taking, in the form of an order signed by the commissioner, declaring that the real property, or an interest in it, or any easement is necessary for the public use of the state is sufficient to vest title in the state. However, a declaration of taking is not effective until eminent domain proceedings have been instituted in the proper court and a copy of the declaration of taking is recorded in the office of the recorder located in the recording district where the land is located. The department may pay or have paid, from the appropriate fund, into court the amount it considers represents a reasonable valuation for the land, easement, or materials taken.