C & E?

Many years ago, before we moved to Halifax, we thought maybe it was time to give up on the Christmas cactus for good.  It hadn't bloomed in some time, we were planning to move, and it's not a small plant; not easy to transport.  But it comes from a cutting from my great-grandmother's plant which sat in a bay window in her house and grew to fill the entire space.  It's got sentimental claims, if nothing else.  

That was the occasion  on which I learned that threats do work on houseplants.  The cactus, threatened with destruction, sent forth a stream of bright blossoms (although it was Easter, not Christmas).   It got a reprieve.  Instead of trying to move it, we entrusted it to the care of some friends.   The next time we went through Hamilton we picked up the cactus and brought it home with us.  It has bloomed reliably every year since I made those cruel threats.

It has lived up to its name, too.  It started blooming at Christmas time, and in fact put forth an absolutely dazzling display this year. 

I don't know what to make of this new blossom, but it's very pretty.   It's been coming on slowly but between yesterday

and today it's burst out into a lovely triple-barrelled display.  It's neither C nor E, so I guess this cactus has some other religious affiliation.   I wonder what it is?