Hatiora ×graeseri (Werderm.) Barthlott in Bradleya 5: 100. 1987 Hatiora ×graeseri (Werderm.) Barthlott in Bradleya 5: 100. 1987is new combination for Hatiora ×graeseri (Werderm.) Barthlott ex D.R.Hunt in Bradleya 10: 25. 1992Taxon for this nameHatiora ×graeseri (Werderm.) Barthlott