Odd leaf production on Colocasia.

**<j*@msn.com>**

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> Date: Sun, 10 Aug 2008 23:17:26 -0400
> From: pugturd@alltel.net
> To: aroid-l@gizmoworks.com
> Subject: Re: [Aroid-l] Odd behavior on Colocasia.

Dear Brian,

I THINK this is a cultivar of Colocasia esculenta, probably one of the vars. introduced by Walter Pagels from Asia, not a hybrid.
It looks to me that this interesting little leaf emerging from high on a petiole of a previous/older leaf might be just an artifact of an extra-long sheath on the older leaf, a sort of occasionel ''deformity'' in this cultivar, if you will.
Try doing a dissection with a razor  blade (you will have to ''sacrifice'' the leaf with the smaller leaf emerging).  Cut the old larger leaf off as low to the ground/roots/corm as possible.
Try looking carefully for the ''seam'' of the leaf sheath along the old leaf, you would start at where the new small leaf has emerged and work/search downward.   Then try cutting cross-sections of the larger leafs petiole, working downward from where the new leaf emerged, determining if a smaller petiole of the smaller leaf does in fact occur INSIDE the closed sheath of the older, larger petiole. 
Let us know what you discover!

Good Growing,

Julius

>>  I have what I believe is a hybrid Colocasia used as a food crop growing 
> in my display. I got the plant several years ago and it has just 
> recently started behaving oddly by  putting out new leaves and as the 
> old leaves grow a knot forms at the upper portion of the petiole and a 
> new leaf emerges out. I am guessing that this leaf and petiole is acting 
> similar to a runner. So far it has not formed new plants from these 
> growths but it is untelling as some are fairly new. Has anyone seen this 
> before? I have been growing a lot of these and this is a first. At the 
> moment the plant has 3 of these forming.
> 
> Here are the photos of the plant in question.
> 
> http://flickr.com/photos/briansbotanicals/
> 
> 
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