Hi Roma,
Well, none of the plants illustrated are either
cariensis,
lanata or
dubia. But I expect you have worked that out already!

I think you are probably right, they all look like
lutea to me.
D. viridiflora has browner flowers somewhat like the third one but also quite obvious bracts (anyone know if
lutea and
viridiflora hybridise?). Unfortunately The Plant List is down at the moment so I can't check out other potential candidates.
Best, Tristan