; and (B) as a source of traditional plants and other materials. 403. Acquisition of land; boundary management (a) Acquisition (1) In general The Secretary may acquire any land or interest in land within the boundary of the National Recreation Area. (2) Manner of acquisition (A) In general Subject to subparagraph (B), land described in paragraph (1) may be acquired under this subsection by— (i) donation; (ii) purchase from willing sellers with donated or appropriated funds; (iii) transfer from another Federal agency