x hybrida nothovar. pumila  Bramw. & Rowley 1973

Parentage : Monanthes brachycaulos  x M. pallens var. silensis

Distribution : Canary Islands : Western Tenerife - "about Casa Blanca [ .... ] the pallens parent is var. silensis and the hybrid is more compact and gry in colour, with leaves 1 cm long, more tapering and less spathulate " (Praeger).

Note : 

Whether the nothovar. pumila is accepted or not depends on the acceptance of var. silensis of M. pallens. If var. silensis is placed in the synonymy of M. pallens, M. x pumila becomes a synonym of M. x hybrida, i.e. the name is superfluous.