I shall have to label them.

Hereinafter referred to as Schlumbergia 2.
I'm not 100% sure but I think it 1st saw the light of Blip about here, in the Zamioculcas pot edge.
I am an inveterate, self-confessed, leaf thief lifter. Every time we visit a garden centre I look for anything lying around susceptible to a modicum of anti-gravity. I gave up on the "Theft" aspect some time ago, but any loose  leaves liable to be gathered up and disposed of are fair game.
Notable exception here - that little clump of greenery forrard of the Schlumbergia was actually damaged but attached - it was literally hanging by a thread & already had rootlets developing.
Now in my book THAT's fair game, and - yet another space to watch.