Re: Iris versicolor vs. virginica

To: i*@yahoogroups.com
Subject: Re: [iris-species] Iris versicolor vs. virginica
From: Kenneth Walker k*@astound.net
Date: Tue, 31 May 2005 20:54:39 -0700
References: 6.1.0.6.0.20050531101506.01d757b0@pop.bizland.com

One theory is that Iris versicolor originated as a tetraploid
hybrid of Iris setosa and Iris virginica and has since evolved
independantly. The distinguishing characteristic of Iris setosa
seeds is a very promiment ridge along one edge. At least some
versicolors shows a hint of this feature, though I. versicolor
murrayana does not. I'm attaching a composite photo of the
seeds of the four types of iris. It only contains one clone of
each type, so it is hardly a definitive study. But I think it is
interesting. The scales are in mm.

Ken Walker

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References:
- Iris versicolor vs. virginica (#2 of 2)
  - From: D* K*

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