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Thread: Are these really carnivorous?

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    Lucky Greenhorn Lil Stinkpot's Avatar
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    Huh. Go figure. Learn something new every day! You are right, I didn't even notice the glands, and I usually have sharp eyes.
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    Regarding stylidium: http://sarracenia.com/faq/faq5760.html

    Stylidium has been proven to produce digestive enzymes, so it's pretty much proven to be carnivorous (or at least 'quasi carnivorous'). And Peat is right, it's NOT the flower trigger that acts to capture prey, but sticky glands around the flowers.

    With Bibilis and Roridula, etc, just because they need other organisms to help them digest their prey doesn't mean they're not carnivorous. As was mentioned, most animals have symbiotic bacteria in their gut to aid in digestion. An extreme example is cows that need many many species of bacteria in their rumen to help them digest otherwise undigestible cellulose from grass. These plants still end up getting a huge part of their nutrients from the prey they capture, even if they don't digest the prey themselves.
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    richjam1986's Avatar
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    And yes, lowii has transitioned to getting most of it's nutrients from tree shrew droppings, so it is at most minimally carnivorous in the wild (as with N. ampularia, getting most its nutrients from falling leaves). That doesn't mean it's not frickin' awesome!
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    Lucky Greenhorn Lil Stinkpot's Avatar
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    Quote Originally Posted by richjam1986 View Post
    And yes, lowii has transitioned to getting most of it's nutrients from tree shrew droppings, so it is at most minimally carnivorous in the wild (as with N. ampularia, getting most its nutrients from falling leaves). That doesn't mean it's not frickin' awesome!
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    i dont do pots. amphirion's Avatar
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    Even if flowerstalks of stelidium are capable of digesting insects, I still do not consider it carnivorous--because it should be the leaves of the plant should be responsible for attraction and capture of insects. Cephalotus, dionaea, drosera, sarracenia, heliamphora, darlingtonia, pinguicula, drosophyllun, utricularia, Byblis, and to some extent, roridula and brochinnia, have all modified their LEAVES to capture prey. Flowerstalks are not leaves, and not the main constituent of a plant. Therefore, eh....

    I'll leave my thoughts at that.
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    John, but he's asking if the plant is carnivorous and flower stalks are part of the plant I am of the opinion that if a plant traps and digests it's prey in some form of another, despite the aid of a symbiotic organism it is carnivorous.
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    Quote Originally Posted by amphirion View Post
    Even if flowerstalks of stelidium are capable of digesting insects, I still do not consider it carnivorous--because it should be the leaves of the plant should be responsible for attraction and capture of insects. Cephalotus, dionaea, drosera, sarracenia, heliamphora, darlingtonia, pinguicula, drosophyllun, utricularia, Byblis, and to some extent, roridula and brochinnia, have all modified their LEAVES to capture prey. Flowerstalks are not leaves, and not the main constituent of a plant. Therefore, eh....

    I'll leave my thoughts at that.
    I think one could argue that the leaves of utricularia and genlisea are not carnivorous. Rather the underground, or underwater, bladders and stolons are responsible for the carnivory.

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    i dont do pots. amphirion's Avatar
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    Quote Originally Posted by fullcollapse View Post
    I think one could argue that the leaves of utricularia and genlisea are not carnivorous. Rather the underground, or underwater, bladders and stolons are responsible for the carnivory.
    those bladders of utricularia and forks of genlisea ARE modified leaves.

    *note* peatmoss showed me photos of stylidium having glands on their leaves when young....i guess you can argue that they have a carnivorous phase from that....
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