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August 25, 2008 : Passiflora caerulea
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Plant Family / Families: Passifloraceae
Scientific Name and Author: Passiflora caerulea L.
Institution: Strybing Arboretum
Name Location: San Francisco, California, USA
This will be the second-last image in this pollinator series, as there are plenty of great non-pollinator images in the Flickr pool and the garden's BPotD submissions forum to share. Thanks to Eric in SF @Flickr for sharing today's photograph with us (original via Flickr BPotD Group Pool). Much appreciated, Eric, as always!
Passiflora caerulea, or passionflower, has previously been featured on BPotD -- but not with a honey bee! As stated by Eric on the Flickr page, this species is bee-pollinated. Wikipedia's entry on Passiflora mentions the pollinators of other species: "Some species can be pollinated by hummingbirds and bumble bees, others by wasps, still others are self-pollinating."
The University of Connecticut's Ecology & Evolutionary Biology Greenhouses have a page on Passiflora caerulea with horticultural information. Wayne Armstrong provides a brief summary of economic uses, religious symbolism and toxic properties of the genus in a small write-up on Passiflora.
Posted by Daniel Mosquin at August 25, 2008 9:44 PM
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Comments
Posted by: Mohsen at August 26, 2008 12:20 AM
There are three major pollinators of Passiflora and numerous minor ones.
The three main ones are bees, illustrated by today's BPoTD, hummingbirds, and bats.
Here is a typical hummingbird pollinated flower:
http://www.flickr.com/photos/ericinsf/58435001/
Hummingbird pollinated Passiflora have long tubes and a greatly reduced corona. They are also scentless, as birds are attracted by the color, not a fragrance.
Bat-pollinated flowers have a curious one-sided arrangement of the anthers and stigmas, as seen here:
Posted by: Eric in SF at August 26, 2008 10:13 AM
I really like to see the pollinators series. This is a wonderful photograph. Also the information is just great and helps me to learn something new each day.
Thanks you,
Margaret-Rae
Posted by: Margaret-Rae Davis at August 26, 2008 10:23 AM
awesome pic thanks.
Posted by: Scott McGillivray at August 26, 2008 1:13 PM
this is as close as i can
get to a bee or wasp hornets
thank you eric what kind of camera did
you use to come so close to the bee
i found the curtis botanical magazine
on line from the late 17003 on to 1800s
with a lot of images the names are so
interesting then i put the name in the
search box to see if the plant still
lives in this time tis the only way
i have right now to go on field trips
the links really help thank you all
Posted by: elizabeth a airhart at August 26, 2008 6:53 PM
Pollination of maypops by carpenter bees is quite interesting in its geometry. While bumblebees have hairy abdomen letting them transport pollen all over their bodies and honey bees carry pollen on their legs, carpenter bees have bare abdomens and are fuzzy only on the tops of their thoraxes. That patch of fuzz is just the right height to brush the stamens and the stigmas (when the sigmas are deflexed as in this picture but not in the 2007 picture) as the bees walk around the platform working the groove.
Posted by: Fred at August 28, 2008 8:10 PM
I have recently returned from a trip to the Amazon and saw the passiflora caerulea growing in the wild. It was quite a find and so gorgeous. Can't wait to paint it.
Posted by: Mary Moore M. Ritchie at September 10, 2008 11:31 AM
Please share your comments about the photograph(s) and accompanying write-up. Telling a story about the subject of the photograph(s) is also much appreciated! If you have a gardening question, the best place to ask is on the UBC Botanical Garden Forums. Thank you!
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