Some have the typical plantlet I would expect:
But one leaf has three of what looks like maybe the beginning stages of this (now that I see it blown up)? But waay red:
These leaves were sitting in a glass of water under some lights for a month or so. What I've noticed about adelae is I can't keep them alive, but I can't keep them dead either.
EDIT: The one leaf had three of those red horns. Two on one side, and one on the other. Kinda like this: --,--'-'--- So I snipped the leaf between the bottom one and above ones, and put both pieces on the LFS horns-up.