We investigate the morphosyntax of qualitative binominal constructions (QBCs) in a Southern Italo-Romance language from the Apulian town of San Marco in Lamis. QBCs are complex noun phrases like ‘a jewelN1 of a villageN2’, appearing here prepositionally (with the preposition də, ‘of’, allowing definites, indefinites, and demonstratives) and non-prepositionally (only allowing definites with definite articles and not proper names). We propose that in the latter, a categorial match in the determiner layer, which we call ‘match D’, relates N1 and N2. (...) N1 is embedded as a noun, allowing for: 1) the recursive DP strategy of non-prepositional genitives, and 2) the extension of this mechanism to QBCs. This leads to the impossibility of syntactic extraction, which we connect to the concept of phase. With non-denominal N1s, N1’s article is treated as a head-agreeing adjectival linker, forming a constituent with the modifier but agreeing with the head. A phrase is interpreted as a QBC if N1 and N2 share the same number features and if the features of N1 do not allow for it to be interpreted as the possessum of N2 . We also discuss external agreement with the construction, presenting data supporting the relevance of the [+HUMAN] feature for agreement relations. (forthcoming, Italian Journal of Linguistics). (shrink)