Abnormalities

 Just like animals, plants sometimes get it wrong. Passiflora as well as having the ability to produce more variable leaves on one plant than I believe any other genus, will also occasionally produce freakish flowers on otherwise normally flowering plants. My two pictures of the P. caerulea flower above and Max Wither's picture of P. manicata show what can happen. It is quite impossible to count the numbers of anthers on the caerulea.