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  Re: [Aroid-l] Dieffenbachia hoffmannii photo?
From: "Tom Croat" <Thomas.Croat at mobot.org> on 2010.03.15 at 09:37:48

Dear Steve:

 

            I know nothing about theorigin of that image but I might not even be D. seguine.  That species has atleast 3 distinct features, a sharply sulcate petiole, a protrudent spadix whichis somewhat clavate spadix and a bilocular ovary.  Other than that it is highlyvariable. 

 

Tom

 


From: aroid-l-bounces@gizmoworks.com[mailto:aroid-l-bounces@gizmoworks.com] OnBehalf Of ExoticRainforest
Sent: Friday, March 12, 2010 2:39PM
To: Discussion of aroids
Subject: Re: [Aroid-l]Dieffenbachia hoffmannii photo?

 

Due to confusion over the link I gave for a photo of Dieffenbachia seguine I located anotherfrom the Missouri Botanical Garden. At least to me, this photo resembles the photo posted of "Dieffenbachiahoffmanii" from Graf's work. 

http://www.mobot.org/gardinghelp/plantfinder/Plant.asp?code=3DB589

Steve
www.ExoticRainforest.com



On 3/1/2010 01:19, John wrote:

I cannot give a source for the name Dieffenbachia hoffmanniibut I have in the 60s and 70s grown this Dieffenbachia, in fact it was afavourite of mine.  The name is no longer valid, if it ever was, but D.‘Exotica’ or ‘arvida’ may be a mutation of it, whateverit is.  Both are said by Graf to be from Costa Rica.

 

The accompanyingillustration may perhaps answer questions about markings on stem and petiole.

 

John.

 



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