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Thread: Sarracenia purpurea VS. rosea

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    Devon's Avatar
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    I read barry's thing on s. purps a while ago and appantly rosea has a bigger "lip" and is larger in general, and there are a few minor differences.. I don't really remeber all of it but I think that's what it said. I just call it rosea because it takes less time to type. but I would agree that it's a form of purpurea...

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    Moderator Alexis's Avatar
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    appantly rosea has a bigger "lip" and is larger in general
    Same applies to ssp. venosa when compared to ssp. purpurea.

    So why don't we have sarracenia venosa?

    No doubt somebody will point out the flowers, but we don't split red and yellow flowered rubra ssp. wherryi into two.

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    Devon's Avatar
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    Quote Originally Posted by Alexis View Post
    Same applies to ssp. venosa when compared to ssp. purpurea.

    So why don't we have sarracenia venosa?

    No doubt somebody will point out the flowers, but we don't split red and yellow flowered rubra ssp. wherryi into two.
    good point.........

    I really have no clue.

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    Let's positive thinking! seedjar's Avatar
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    I'm pretty sure the only justification that I've heard was the flower. Seems kind of silly to me; at a glance, you would group the purpurea varieties together as distinct from the various other species. They're too close in form to be distinct species.
    But there is the case, among genera like Nepenthes, where plants that look very similar are named distinctly because of geographical distribution. I believe in my phylogeny class we talked about animal species that were distinguished almost entirely by genetic markers (probably as a result of geographic separation, I guess.)
    With Sarracenia, though, it seems like varietal names are preferred for distinct groups, or simply location data.
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    Though flowers in taxonomy usually play a large role in determining species, wouldnt it be simpler to just refer to all 4 as subspecies?
    It sounds like the current classifications have more to do with location of the plants to one another then the characteristics. Sure one can make the case that the lip, flower colors, hood hairs etc all vary but IMO these are just genetic variabilities and not qualifications to claim a new species. Price example would be with Sarracenia flava (cuprea, rubricorpora, maxima, rugelli etc...) They are just referred to as varieties, not subspecies.

    Sarracenia purpurea ssp./var. purpurea
    Sarracenia purpurea ssp./var. venosa
    Sarracenia purpurea ssp./var. burkii
    Sarracenia purpurea ssp./var. montana


    This would make things much simpler IMO.

    If we were to use rosea then by these standards we could classify blondes, brunettes, red heads etc... all into their own species...

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    Devon's Avatar
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    Quote Originally Posted by F R e N c H 3 z View Post
    If we were to use rosea then by these standards we could classify, blondes, brunettes, red heads etc... all into their own species...
    hahaha...

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    Moderator Alexis's Avatar
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    I believe the current classifications have more to do with location of the plants to one another then the characteristics. Sure one can make the case that the lip, flower colors, hood hairs etc all vary but IMO these are just genetic variabilities and not qualifications to claim a new species.

    Sarracenia purpurea ssp. purpurea
    Sarracenia purpurea ssp. venosa
    Sarracenia purpurea ssp. burkii
    Sarracenia purpurea ssp. montana

    This would make things much simpler IMO.
    I agree. We all know they're different, but the argument revolves around exactly how different they are.

    And that could go on forever.

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    Drats caught me in between edits...

    I dont know why I hadnt thought of flava yesterday as an example. Why does one follow a variety and another a subspecies? genetics?

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