Cereus Species, Andes Organ Pipe, Peruvian Apple, Queen of the Night, Spiny Hedge Cactus

My curious cat just knocked over my Cereus and snapped it in half except for the skin on one side. I did my best to keep it connected so ...Read Moreit wouldn't dry out while I scouted up first aid materials. I tied it in place using a bamboo plant stake, stabilized it and then decided to use petroleum jelly around the split to try to minimize any oozing and seal the graft. I then generously watered it.

I know that I should have just separated them and dried their raw ends and then restarted the top piece, but I started it from seed a decade ago and was so hoping it might bloom in the next couple years... I am devastated, and....

I am hoarse from screaming at the cat!

Any Cereus doctors out there????? ( I posted my efforts in the image section.)

Apparently the synonym "C. peruvianus" was "misapplied" to C. hildmannianus in a 1768 publication. "C. peruvianus" is actually a synonym ...Read Moreof C. repandus. Lots of people call C. hildmannianus the Peruvian Apple because the plant looks very close to C. repandus which is the true Peruvian Apple.
Some publications list C. hildmannianus as "Hedge Cactus & Queen of the Night" The main identifying characteristic for C. repandus is it has pinkish white flowers instead of white or white/yellowish flowers; and the flowers are smaller.

The main differences between the two subspecies of Cereus hildmannianus are:
Subspecies 'hildmannianus' ; the stems grow in a more upright fashion and the plant has a more overall compactness look to it. The spines are also less than a quarter inch long.
Subspecies 'uruguayanus' ; Alot of the stems growing out from the base are at slight angles instead of upright and dosen't look as compact. The spines are longer than a quarter inch. The flowers are the same on both subspecies.