Neoporteria omasensis (Ostolaza & Mischler) Ferryman, Cacti Illustr. Dict.: 147. 1991 Neoporteria omasensis (Ostolaza & Mischler) Ferryman, Cacti Illustr. Dict.: 147. 1991is new combination for Islaya omasensis Ostolaza & Mischler in Kakteen And. Sukk. 34(3): 57. 1983Taxon for this nameNeoporteria omasensis (Ostolaza & Mischler) Ferryman