I think the plant you are thinking of is Kalanchoe (Bryophyllum)
daigremontaniana, aka "mother of thousands".
Each plant produced many tiny plantlets("stickers"?) along the
margins of each leaf and they grow easily when they fall off.
How did you ever lose such a plant completely? I have them everywhere as
weeds.
If you will email me privately with your snailmail address I will be glad
to send you a few tiny unrooted plantlets. I assume that you are in the
USA when I say that.
--
Clark Weston
<bk161@rgfn.epcc.edu>