Memory strings jerked.

For years I/we have had "Christmas Cacti". There's one similar, I've had for some time and yet forgotten its name, I recently saw it refered to as "rhipsalidopsis". I remembered it as "Rhipsalis", so went hunting.
It is apparently "rhipsalidopsis" and not the Rhipsalis I remembered.
Anyway, here it is, long after the Schlumberers had "gone back", just "Taking its marks" ready for the gun.
The Heart is, really just there to level it's "foundation" but is no less pertinent?