I've been thinking that lesser celandine was Ficaria for a long time anyway and those others you mention are, as you say, hardly revolutionary. I hope it's reproductive biology and morphology (and DNA I suppose these days) that's separated those parasitically-inclined species out and not merely the fact that they're parasitically-inclined!

We have Orobanche minor growing in the new shrubbery in Morrisons' car park in Bude! The autumn ladies'-tresses have done quite well around the weather station this year after the Wildlife Trust prevailed on the council to adopt a more sensible mowing regime!