Re: Dieffenbachia hoffmannii photo?

Dear Steve:

 

            I know nothing about the origin of that image but I might not even be D. seguine.  That species has at least 3 distinct features, a sharply sulcate petiole, a protrudent spadix which is somewhat clavate spadix and a bilocular ovary.  Other than that it is highly variable. 

 

Tom

 

From: aroid-l-bounces@gizmoworks.com [mailto:aroid-l-bounces@gizmoworks.com] On Behalf Of ExoticRainforest
Sent: Friday, March 12, 2010 2:39 PM
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 another from the Missouri Botanical Garden.  At least to me, this photo resembles the photo posted of "Dieffenbachia hoffmanii" from Graf's work. 

http://www.mobot.org/gardinghelp/plantfinder/Plant.asp?code=B589

Steve
www.ExoticRainforest.com



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

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  The name is no longer valid, if it ever was, but D. ‘Exotica’ or ‘arvida’ may be a mutation of it, whatever it is.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

 

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

 

John.

 



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