Snow in Summer with Passiflora tucumanensis

One of the plants that I purchased this Spring at South Coast Botanical Garden was Passiflora tucumanensis. It was a vigorous grower, and recently before a week long vacation, I noticed that it had some immature buds. I returned home from that vacation to find something a little unusual. I expected a lovely little corona of banded filaments. What I got was a nearly pure white flower with a tiny hint of mauve on the inner series of filaments. Although it wasn't what I was expecting, it's a very nice flower and I don't have any all white plants since my P. 'Quasar' dried up. It's a keeper, and since P. umbilicata is blooming, I'll try to make P. umbilicata x P. tucamenensis alba.