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Double column on Cattleya orchid

This is a discussion on Double column on Cattleya orchid within the Cattleyas, Vandas, Dendrobiums IN BLOOM forums, part of the Orchid Photography category; Originally Posted by Michael Saar This flower is not really peloric. Without getting overly complicated ...

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  1. #11
    PaphMadMan is offline Senior Member
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    Quote Originally Posted by Michael Saar View Post
    This flower is not really peloric. Without getting overly complicated (and exponentially increasing my chances of saying something wrong), a truly peloric orchid would be radially symmetric and have three lips and three columns or three petals and no lip. Peloria apparently can be either developmental or genetic. (The simple dictionary definition of peloria is "Unusual regularity in the form of a flower that is normally irregular.")
    Correct interpretation on peloria. A peloric flower must be more nearly radially symmetrical than normal. All the parts except the lip are doubled here, but since it has one and only one lip which is not mimicked by the petals it is still bilaterally symmetrical and not peloric. But very interesting and attractive in a way.

  2. #12
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    Again it's only the one flower on the inflorescense. The rest are completly normal.
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  3. #13
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    Not to worry, Jeff. I think this is only a temporary aberration, most probably caused by stress. The weather, perhaps?

  4. #14
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    Yes I agree with Yew, this a stress related/ mostly temperature determined phenomenon. The reason you observe it only in one flower, is because developmental problems arising due to stress are very stage specific. May be when the stress occurred only this bud was in the developmental stage that could get affected. The floral organs are determined my interactions between many transcription factors, if the temperatures increse the interaction becomes weak leading to aberrations, its just like nuts and marshmallows stuck together using chocolate in a Rocky road, warm it up and the chocolate will melt no longer able to hold the nuts and marshmallows together.

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