Hi,
The one pictured is called , "Passaflora Incense" , it has very large flowers up to 5 inches in diameter and have a very heavy scent to them.
This kind of passion flower grows like a weed here in California, it sends roots under ground quite far from the parent plant and will start another vine somewhere else. It also has fruit that has seeds that you can start new plants from as well. The fruit is edible , But I don't like it myself.
I used to have over 15 different kinds on passion flowers growing here but most of them couldn't stand the weather changes here and died.
I have 5 types in my yard still, Passiflora caerulea, Incense , Constance eliott (a white variety of Passiflora caerulea)and 2 others I can't remember the names to.
If you are really interested in Passiflora you need to get a book by... John Vanderplank "passion flowers"
Lots of very good pictures and many different descriptions, As a matter of fact the book I have has the same flower (as posted in the original post)on the cover. Very good book worth the information if interested.
Regards to all , Steve