Re: SPEC: Color Reversions and ELSIE CROUCH DILTZ


>Clarence Mahan observed that one part of a plant of I. florentina--now 
considered a white form of the purple I. germanica-- in his garden had 
changed to purple. The presumption is that this was a reversion. 
When you say one part, do you mean that the blue flowering rz was still 
attatched to the white flowering rz? Perhaps this is another case of 
somatic tissue mutation, as in the case of a chimera.
It would be extremely improbable that a whole bed of coloured irises 
would revert in this way. (I would be more prepared to accept a theory 
that involved interference by aliens :-))
Clarence's experience is very interesting though, and not improbable, 
given that other plants do this from time to time. 
Jan Clark

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