Are Sutherlandia and Pratia in the same family?
Pratia Pratia is a genus of flowering plants in the family Campanulaceae, native to Asia, Australia and New Zealand.
Perreiraara × Perreiraara, abbreviated Prra. in the horticultural trade, is the nothogenus for intergeneric hybrids between the orchid genera "Aerides", "Rhynchostylis" and "Vanda" (Aer. x Rhy. x V.).