Can anyone tell me where Cisanthe grandiflora sits, taxonomically speaking.

Although it is known by that name in the trade, I suspect that is not its
correct name. MB3Tropicos never heard of it; neither did GardenWeb. I tried
IPNI, but it was broken. Judging from the picture of a flower I saw & your
description, it is rather primitive & close to the Tiliaceae. Some of the large
plant encyclopedias tell you which family each plant belongs to.


Iris,
Central NY, Zone 5a, Sunset Zone 40
"The trouble with people is not that they don't know but that they know so much
that ain't so."
Josh Billings (Henry Wheeler Shaw), 1818-1885