Sorry for yet another reply -- P. ligularis and P. laurifolia are worth trying in LA. I'm growing ligularis outdoors here, and while it likes growing in nearly full shade, it's just not hot enough to get it to flower.
P. laurifolia -- Jamaican passionfruit -- is probably my favorite fruit, but it's considered tropical so I'm growing it indoors, and have two sprawling indoor vines in my office. However, if you're in a warmer spot in So Cal -- a warm zone 10b -- then you can probably grow it outdoors. I spoke with a farmer who grows it outdoors commercially in Homestead, FL, and while that doesn't necessarily mean much for growing something in LA, I've learned that P. laurifolia likes slightly drier climates anyway.