The flowers remind me of Trachelospermum jasminoides. That's in the family Apocynaceae.
A lead maybe before I go off searching more, look at Tabernaemontana amblyocarpa
http://www.cybertruffle.org.uk...
https://sites.google.com/site/...
It obviously isn't Tabernaemontana catharinensis but the similarity might help.
https://www.google.co.uk/searc...
I searched for seed pods in the family, found something which looks like yours. Clicking on the view image button gives Dregea volubilis but flowers and form don't match. I can't get Flora d Brasil at the moment.
https://www.google.co.uk/searc...
http://3.bp.blogspot.com/-6F98...
Very similar flower to Schubertia multiflora ..
http://fm2.fieldmuseum.org/pla...
I have a feeling this has been identified before Myriam, but how to find it. There's flowers and seed pods which look so similar in this family, but I haven't found them together.
I went off searching. Back later.
