Hi Linda
They should look like in the link below when ripe - they tend not to drop but in any event they are not edible - they are meant for bats rather than humans to eat! You can use them to make ink though apparently.
Myles

Here is a link that might be useful: Passiflora suberosa fruit

Thanks Myles, I wasn't planning to eat them though, just wanted to harvest the seeds. LOL I appreciate your help. linda