Pulverulenta Boom
Parentage : C. perfoliata var. minor (C. perfoliata var. falcata) x C. schmidtii.
First published in Succulenta 36(3): 25-27, 1957 as C. x andegavensis.
Etymology : ‘andegavensis’ means ‘originated at Angers’.
Link to the original publication (Dutch).
Illustration of the original publication in Succulenta 1957 :

Illustrations from CSJ US, Vol. XLIV, p. 104, 1972 :

Left : Plant in flower reduced
Right : Offset nat. size
Illustration from Jacobsen, A Handbook of Succulent Plants, Fig. 293, p. 302 :
