Neolloydia matehualensis Backeb. in Spine 1: 108, 112. 1948 Neolloydia matehualensis Backeb. in Spine 1: 108, 112. 1948is basionym for Neolloydia conoidea var. matehualensis (Backeb.) Kladiwa & Fittkau in Krainz, Kakteen 42: VIII b. 1971Taxon for this nameNeolloydia matehualensis Backeb.