Andreas, my snail-mail address is listed below. If you ever hear about
seed from this plant (_Ibicella lutea_) please inform me. So far I've
been on a trail of misidentified plants, with everyone growing related
plants mistaking them for _Ibicella_ when in fact the plants are
_Proboscidea_. I'm running out of ideas...
Barry Meyers-Rice
Steward Observatory
University of Arizona
Tucson, AZ 85721 USA
P.S. Incidentally, a bit of checking in the literature verifies that in
California and Australia, where _I.lutea_ occurs as an introduced weed,
the calyx lobes are completely separate from each other. Anything with
fused sepals is not _I.lutea_.