> > >However, the kidney-shaped lamina of _D. prolifera_
> > >approaches this form to some extent. Maybe hybridization with the
> > >closely related _D. adelae_ could "help".
> >
> > Given the thought that they are closely related, has anyone produced a
> > hybrid from these plants?
>
> I rather doubt D.prolifera and D.adelae can hybridize. However,
> D.prolifera and D.schizandra both the same number of chomsomes so
> these two stand a much better chance of crossing while D.adelae
> has the differing number.
Maybe. But the result cannot be expected to have the desired heart-
shaped leaves!
Kind regards
Jan