I have been corrected on eBay regarding my Phrag. Devil Fire- Grande x popowii. A bidder corrected me saying that I listed the plant with the incorrect parentage. She stated it was Grande x warscewiczianum, according to Orchid Wiz. However, RHS listed the cross as Grande x humboldtii, which popowii and warscewiczii are synonyms. It is my understanding that, while Grande x humboldtii is the correct cross terminology, the others are also correct since they are horticultural synonyms. Am I correct or am I mistaken?