> This got me to wondering if there are species of Drosera with heart-shaped
> leaves. In all my CP bookworming, I've never come across one. Does
> anyone know if they exist? And if so, which species?
Truly cordate or heart shaped leaves (with emarginate lamina base and
pointed apex) are unknown (at least to me) in _Drosera_ as a regular
phenomenon. However, the kidney-shaped lamina of _D. prolifera_
approaches this form to some extent. Maybe hybridization with the
closely related _D. adelae_ could "help". The lamina of the (also
closely related) _D. schizandra_ may become cuneate-narrowly
obcordate (with the apex truncate-slightly emarginate and the base
narrowed into the petiole). Anyway, you should perhaps try the N
Australians.
yours cordially
Jan