Re: CULT: Purple rhizomes

> 
> I was just composing a list of these just before I read my digest to
> see your posts. I have refered to this as a purple rhizome and used
> the shortform PR. It isn't a ring but a solid colour of the rhizome.
> It occurs mostly with SDB amd MDB but some IBs and one TB that I have
> noted is Jump Start, which is also PBF. It can be seen most clearly
> when the older foliage is stripped from the rhizome. It is dilluted by
> age and sunlight and can only be seen clearly when it is  cleaned. It
> is different then the PBF allthough there are a few SDbs that have a
> continuous colouration such as my own Limesicle that is intensly
> purple on the rhizome and this continues to intense Purble Based
> Foliage  with no interuption of colour. There are some plants with
> both PR and PBF that have a clear uncoloured space between the PR amd
> PBF such as Splash of Red, Down And Dirty and the TB Jump Start. 
> 
> PBF is made more intense with Sunlight whereas PR is made less intense
> by exposure to sun.  All fascinating stuff.
> 
> I have use PR as well as PBF to help sort out plants that get mixed up
> with each other. PR is quite common in SDBs, guessing arout 25% or
> better, wheras PBF is around 6-7%.  
> I have some good photos of all these and will prep a few for posting
> on Iris Photo.
> 
> Chuck Chapman

Correction. Jump Start is an IB, not a TB.


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