Yes, I can read it very nicely and this is exactly what I thought you have here, your seller identified it perfectly.:
Nopalxochia (or Disocactus) phyllanthoides (aka Deutsche Kaiserin) X Heliocereus (Disocactus) speciosus. and I wrote it correctly -
Disocactus x hybridus 'Ackermannii'
There is also a species called Disocactus ackermannii ( lower case "a") as your paper reads. The Stigma lobes on your flowers are white, that rules out the species. ( the species ackermannii would have red Stigma lobes, which is the main characteristic to identify the species)
If you feel like reading, here is a bit more background on your wonderful plant
http://en.wikipedia.org/wiki/D...
Ursula
