Shirley Meneice samclan@redshift.com
Thu, 07 Jul 2005 20:49:12 PDT
Great question Judy.  I once believed it all had to do with the 
orientation toward their light source.  I no longer believe that.  I'll 
start observing a bit more carefully and report what I notice.

    Shirley Meneice

Judy Glattstein wrote:

>I have two Arisaema fargesii flowering with their "backs" turned to the 
>path they are near. Arisaema respond well to digging while in flower, so 
>I could lift, turn 180 degrees, and pop them back into the same 
>location. Or, I could try moving them across the path.
>This is something that has occasionally intrigued me: do arisaema 
>present the same orientation from year to year? In other words, if I 
>spin them 180 degrees will they flower as I wish next year, or will they 
>stubbornly refuse to display their funny faces. What determines why 
>their flowers face the way that they do? With tulips I know that the 
>first leaf appears on the stem on the flatter side of the bulb. But that 
>has nothing to do with the flower.
>Any observations, comments, suggestions?
>Judy in summertime New Jersey. Gray and rainy today, which means it may 
>not reach steam bath conditions as it often does when the sun shines.
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