Peter, we do have this entry.
Hen and Chicks (Sempervivum x comollii (x albidum))
I changed the wording in the detail field for Oddity. See if it looks better now.
Hen and Chicks (Sempervivum 'Oddity')
If you look up S. albidum on Horst's site this is what it says about Oddity. But I'm not sure if that is correct. I st a parent of 'Oditty' / is a natural hybrid of S. archnoideum and S. calcareum, gray-green leaves, leaf bases and tops in purple temporarily. Good winter coloring
And I now understand that S. calcareum is a form or variety of tectorum.
And comollii is a cross S. x comollii Rota ( Prosp. Fl. Bergamo, 100, 1853 / Hybride aus S. tectorum x S. wulfenii
Am I getting this correct Peter?
