Narcissus 'Cedric Morris ' was collected in the wild as a variant of N. minor in 1956
DaffSeek has the story...
So does John Blanchard. Collected by Basil Leng in northern Spain (nr. Ribalden) & cultivated by Sir Cedric Morris for several years. Hence the name. Apparently Basil Leng revisited the site some years later but found all the plants had disappeared as a result of road widening.