§ 1321. Consent by the state. The commissioner of general services shall have power, in his discretion, from time to time to transfer and convey to the authority, or to one or more participating counties for the use of the authority, and for such consideration as may be determined by him to be paid to the state, unappropriated state lands and lands under water which the authority shall certify to be necessary or desirable for the corporate purposes of the authority.