Class 11 E16 - Mammillaria supertexta, Mammillaria parkinsonii brevisina, Turbinicarpus viereckii major, Lophophorbia williamsii, Tephrocactus datematus, Strombocactus disciformis, Epithelantha, Coryp
Class 11 E16 - Mammillaria supertexta, Mammillaria parkinsonii brevisina, Turbinicarpus viereckii major, Lophophorbia williamsii, Tephrocactus datematus, Strombocactus disciformis, Epithelantha, Corypantha conifers, Gymnocalycium anisitsii, and Obregonia denegrii - Tom Powis