User Tag List

Informational! Informational!:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 8 of 16

Thread: Passiflora foetida

  1. #1

    Join Date
    Jan 2003
    Location
    San Pedro, Laguna, Philippines
    Posts
    116
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi all,

    Since my garden gets attacked by -what I think is [img]http://www.**********.com/iB_html/non-cgi/emoticons/confused.gif[/img] - Passiflora foetida, I wanted to ask if these plants, ie the flower buds are considered carnivorous or just 'insect catching'? What's the latest on this?

    Flower bud:


    Flower:
    http://pitcher-plants.com/bannersmall.jpg Manila, Philippines, Elev: 80 m, 24-33 C

    Tropical outdoor growers: Please visit our Carnivorous Plants in the tropics forum

  2. #2
    goldtrap2690's Avatar
    Join Date
    Sep 2002
    Location
    San Francisco
    Posts
    1,390
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    cool , i wish i had a passion flower , heres some info on foetida : http://www.sarracenia.com/faq/faq5750.html , i thin k it is carnivorous but i guess barry just did'nt have much luck growing it . if its a nuisance in your garden i'll take a few plants , i guess .

  3. #3

    Join Date
    May 2003
    Posts
    102
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The bracts are just to protect the flower buds - it is highly unlikely they would be providing any nutritional benefit to the plant.

    Giles

  4. #4
    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
    Join Date
    Aug 2001
    Location
    Richmond, Virginia/Zone 7
    Posts
    10,335
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It has been reported that p. foetida MIGHT be carnivorous but that has not been proven. The feathery bracts supposedly pick up insects but I don't think it has been studied as to whether the insects provide any nutrition to the plant.

    If you have any cuttings available, I'd love to work out a trade if I have anything you'd be interested in. I am a passiflora grower and don't have p. foetida (also called the "goat scented passionflower".)

    Suzanne
    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

  5. #5

    Join Date
    Jun 2002
    Location
    Cambridgeshire, U.K.
    Posts
    390
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I had the opportunity to discuss the possible carnivorous role of the sticky bracts of Passiflora foetida with John Vanderplank, author of the renowned book 'Passion Flowers' and holder of the UK National Collection of Passiflora, at Chelsea Flower Show in London in 2001. He seemed fairly convinced that whilst the primary role of these bracts is defensive, to protect the reproductive structures, the presence of protease enzymes is strongly suggestive of a secondary, carnivorous function.

    See this link for an abstract detailing the research by Radhamani, Sudarshana and Krishnan, which supports this view - Passiflora foetida abstract.

    Obviously this species requires more research to establish whether or not P. foetida absorbs nutrients from captured insects and actually benefits from them. However, in my view, the presence of digestive enzymes, not present in several 'carnivorous' plants, for example Darlingtonia, definitely warrants further investigation.

    Vic
    They say that money talks, but all it ever says to me is goodbye.

  6. #6

    Join Date
    Jan 2003
    Location
    San Pedro, Laguna, Philippines
    Posts
    116
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for all the answers! I will check if I find some dead insects on the plants and take images if successful.
    I am located in the Philippines, therefore it might not be allowed to send plants or cuttings without phytosanitary papers etc. I guess in a few weeks we can talk about seeds, since I see some small fruits developing.
    http://pitcher-plants.com/bannersmall.jpg Manila, Philippines, Elev: 80 m, 24-33 C

    Tropical outdoor growers: Please visit our Carnivorous Plants in the tropics forum

  7. #7
    Moderator Schmoderator Fluorescent fluorite, England PlantAKiss's Avatar
    Join Date
    Aug 2001
    Location
    Richmond, Virginia/Zone 7
    Posts
    10,335
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ahhh...no problem Leucophylla. I didn't realize you were not on the mainland U.S. I know that's a hassle. IF you get some seeds, let me know. Maybe they would be easier and safer to mail.

    Thanks Vic for that information. Very interesting. I'm glad someone is discussing it at least. It would make fascinating study for someone with the time and know-how.

    Suzanne
    "Fox terriers are born with about four times as much original sin in them as other dogs." - Jerome K. Jerome

  8. #8

    Join Date
    Jan 2003
    Location
    San Pedro, Laguna, Philippines
    Posts
    116
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I can find some dead caterpillars on the bracts. If these are eaten by the plant or if these just have hatched, I assume the latter. Anyway I could only find the caterpillars on the bracts, which could be a hint that the plant is benefitting from them, or maybe from their hull...? Well, just to feed the discussion [img]http://www.**********.com/iB_html/non-cgi/emoticons/wink.gif[/img]
    Right now we have frequent strong rains and I am anyway surprised to find something on the bracts.

    Dead caterpillar

    Caterpillar: Blurry live version :-)
    http://pitcher-plants.com/bannersmall.jpg Manila, Philippines, Elev: 80 m, 24-33 C

    Tropical outdoor growers: Please visit our Carnivorous Plants in the tropics forum

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •