Holy craps! Are they pulling the rugs on us again? They are changing the names of my most favorite phrag species? How moronic!!!
Since Jason did such a great job in telling you those species (most commonly available, caudatum, warscewiczianum, and wallisii), I don't have much to add except that there might be varieties for some of the aforementioned species, like Phrag. caudatum var. sanderae.
I think that your caudatum is such a great plant. 28 in. petals and still growing!!! Holy COW indeed!