Thelocactus pseudopectinatus (Backeb.) E.F.Anderson & Boke in Amer. J. Bot. 56: 326. 1969 Thelocactus pseudopectinatus (Backeb.) E.F.Anderson & Boke in Amer. J. Bot. 56: 326. 1969is new combination for Pelecyphora pseudopectinata Backeb. in Kakteenkunde 5: 98. 1935Taxon for this nameThelocactus pseudopectinatus (Backeb.) E.F.Anderson & Boke