My updated Sempervivum list so far:
Angorite (S. Thomas)
Ashanti (Schara)
Bambini (Geiger)
Bernds Weisse (M.Haberer)
Betrison (A Smits)
Black Emerald (name by Geiger)
Black Panther (Thomas)
BlackCurrant Ice (S.Thomas)
Blushes (S.Thomas)
Blutstropf (Schara)
Brand New Toy (Schara)
Brear O'Day (A.Smits)
Brown Bear (unknown)
Cadet (A.Smits)
Dickkopf (J. Fritz)
Dr. Fritz Kohlein (Schara)
Dune (H. Phillips)
Dwight (Anne E Adams)
Fabienne (A.Smits)
Galswintha (A. Smits)
Green Caro (A.Smits)
Gwyniera (S.Thomas)
Havendijker Armee (Carlo deWilde)
Hocus Pocus (A.Smits)
Howard and Sally Will (A.Smits)
Hugo (Geiger)
Issey Miyake (Schara)
Janko and Irenka (M. Miklanek)
Kaerts Ferdinand (A.Smits)
Keriba-(Schara)
Korspel Beauty (A. Smits)
Mickey Mouse-ciliated green(A.Smits)
Moonlite (S.Thomas)
Nano (Schara)
One Hundred (Schara)
Pachamama (Geiger)
Paleta (A.Smits)
Papucchini (Geiger)
Regenbogen-Rainbow(H. Diehm)
Romiley (A.Smits)
Sanne (A. Smits)
Sara Maya (unknown)
Shannon (A.Smits)
Smilie (Geiger?)
Talula (Geiger)
Tambora (M. Haberer)
Tarantula (S.Thomas)
Tesoro (Schara)
Vanto (Schara)
Whirlpool (S.Thomas)
Zannalee (Schara)