The department shall have power and authority, with the approval of the Governor, to grant, assign and¹ convey to the Authority,² with or without consideration, any lands, easements or rights in lands, together with any improvements, buildings or structures therein or thereon, now owned by the Commonwealth of Pennsylvania or hereafter acquired by it, needed or convenient for the corporate purposes of the Authority, or to lease to the Authority for a term, not exceeding ninety-nine (99) years, at a nominal or such other rental as may be determined, any or all such lands, easements or rights in lands, together with any improvements, buildings or structures therein or thereon.