This huge vine is growing on a pergola in the Botanical garden of Rio de Janeiro, the flowers are very big.

Bump!

It's a beauty Myriam! I spent some time looking for it before but couldn't find anything, the flower reminds me of a 'Bat plant' in some ways.

I found a pdf listing trees, it might help with others you have!

http://www.checklist.org.br/ge...

Maybe you could contact them to find out?

http://www.bgci.org/garden.php...

Thanks Janet! Good idea to contact them, I've send them a mail with a link to here!
Yes, that pdf list might be helpful!

That sure is stunning Myriam. I will be anxious to know what it is.

Mystery solved, (never got an answer on my writing..)
The vine is Camoensia scandens, a plant originating from Africa. I found the plant tag a few days ago while in the botanical garden of Rio de Janeiro..

I guess you have looked more closely for other names Myriam!

I wouldn't have thought it was in Fabaceae!

http://en.wikipedia.org/wiki/C...)

Thanks Janet and Ann!

This tag had escaped my attention last year Janet, but it still stands that many plants/trees in the botanical garden of Rio have no plant tags!
I cannot look at you link as the internet where I am now is extremely slow and unresponsive..