Your rumour is a bit out-dated: Helicodiceros was in fact 'moved'
to Dracunculus 1857! [Dracunculus muscivorus (L.f.) Parl., Fl.
Ital. 2: 252 (1857).]
However, recent molecular analyses (e.g., Mansion et al 2008 [Systematic
Biology 57(2), 269–285] have not only strongly supported that
Helicodicerous is 'good' but that it is not even particularly closely
related to Dracunculus, it is sister to Eminium.
Dracunculus is sister to a clade comprising Gymnomesium (i.e.,
Arum pictum) + Arum.