For limited purposes, the distinction between legal title and beneficial ownership may provide a useful reference point in describing the position of the ordinary unpaid vendor of land under an uncompleted contract of sale. However, and with due respect to some past statements of high authority to the contrary, it is wrong to characterize the position of such a vendor as that of a trustee. True it is that, pending payment of the purchase price, the purchaser has an equitable interest in the land which reflects the extent to which equitable remedies are available to protect his contractual rights and that the vendor is under obligations in equity which attach to the land. None the less, the vendor himself retains a continuing beneficial estate in the land which transcends any "lien" for unpaid purchase money to which he may be entitled in equity after completion. Pending completion, he is beneficially entitled to possession and use. Pending completion, he is beneficially entitled to the rents and profits. If the purchaser enters upon the land without the vendor's permission and without authority under the contract, the vendor can maintain, for his own benefit, an action for trespass against the purchaser. While the practical significance of those continuing beneficial rights of the vendor may vary according to particular circumstances (e.g. whether completion is already overdue or is not due for some lengthy period), it is both inaccurate and misleading to speak of the unpaid vendor under an uncompleted contract as a trustee for the purchaser: see, generally, per Brett L.J., Rayner v. Preston [74] and Waters, The Constructive Trust (1964), p. 74ff. There is authority for the view that, after completion has actually taken place, some of the equitable rights of the purchaser, which (in their entirety) then constitute beneficial ownership, relate back to the date of the contract. But there is no relation back of beneficial ownership in the sense that the vendor is retrospectively deprived of his beneficial right, pending payment of the full purchase price, to the possession, use, rents and profits of the land. Regardless of whether his rights be viewed in the perspective of foresight (i.e. before completion) or hindsight (i.e. after completion), the ordinary unpaid vendor of land is not a trustee of the land for the purchaser. Nor is it accurate to refer to such a vendor as a "trustee sub modo" unless the disarming mystique of the added Latin is treated as a warrant for essential misdescription.