Hey Gordon,
Fancy meeting you here ;-) I have the red passi vitifolia almost similar to your Piressi but it has a white center . I have about 12 passis in various stages . Still blooming/fruiting , blooming, bloomed, about to bloom and the rest are young plants of about a year and 2 from seeds still on the germination stage. I have acquired some of them through a swap I did on FB, and some are from the Florala swaps and Carol Habig then the rest I purchased. If you would be interested, we can swap rooted cuttings of your passis with mine but we have to wait until Spring for it. It takes forever to have them root and with the cold season coming upon us, it may not be a good idea to do it.
Here are some of my passis that has bloomed/blooming
Passiflora edulis purple possum
Passiflora temptation x temptation
Passiflora thuraia
Passiflora incense
Passiflora vitifolia