Islaya omasensis Ostolaza & Mischler in Kakteen And. Sukk. 34(3): 57. 1983
Islaya omasensis in Kakteen And. Sukk. 34(3): 57. 1983
is basionym for Eriosyce islayensis subsp. omasensis in Cactaceae Syst. Init. 21: 11. 2006
is basionym for Echinopsis omasensis in Cactaceae Consensus Init. 6: 8. 1998
is basionym for Eriosyce omasensis in Cactaceae Consensus Init. 6: 8. 1998
is basionym for Neoporteria omasensis, Cacti Illustr. Dict.: 147. 1991
Holotype: Peru, Rio Omas, km 36 von der Panamericana Sur, bei Omas, Departement Lima, 7 Aug 1982, Mischler & Ostolaza s.n. (M: M0145812) https://plants.jstor.org/stable/10.5555/al.ap.specimen.m0145812
Isotype: Peru, Rio Omas, km 36 von der Panamericana Sur, bei Omas, Departement Lima, 7 Aug 1982, Mischler & Ostolaza s.n. (USM: 37464)