I'm stymied on these quotations below by William Swadling†. I know that a sub-trust can hold Equitable Rights. But why would the proposition in italics "mean that equitable rights could not form the subject-matter of a trust" ?
But the more egregious error is to say that the beneficiary has ‘equitable’ title (or sometimes ‘beneficial’ title). The reason this is wrong is that it creates the impression that the beneficiary has an ‘equitable’ or ‘beneficial’ version of the rights held by the trustee. In other words, the beneficiary has the same rights as the trustee, albeit that they are recognised by equity and not law, as are the rights of the trustee. [emphasis mine]
If this was right, it would mean that equitable rights could not form the subject-matter of a trust, yet the example of the sub-trust demonstrates that proposition to be false – it is not only legal rights which can be held on trust.