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