I've always been confused by the different types of Holiday Cacti and I found notes that I compiled some years back with descriptions of Schlumbergera and Hatiora that have me wondering again. My old notes describe Schlumbergera x buckleyi as a hybrid cross between Christmas Cactus (Schlumbergera russeliana) and Christmas Cactus (Schlumbergera truncata) I thought x indicated a hybrid cross but I checked the Catalogue of Life entry and see that it's listed there as species Schlumbergera x buckleyi so is that a legitimate species name and if so, should our database list it with the x?
