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Re: [aroid-l] How many leaves??

  • Subject: Re: [aroid-l] How many leaves??
  • From: "Julius Boos" ju-bo@msn.com
  • Date: Sun, 17 Aug 2003 10:11:13 -0400
  • Seal-send-time: Sun, 17 Aug 2003 10:11:18 -0400

  ----- Original Message ----- 
  From: Dietmar Kiehlmann 
  To: aroid-l@lists.ncsu.edu 
  Sent: Sunday, August 17, 2003 7:23 AM
  Subject: Re: [aroid-l] How many leaves??

  Dear Margret and Dieter,

  I do not believe that true 'branching' can take place in any aroid.   As Peter Boyce explained, new entire leaves w/ petioles are produced from a previous leaf sheath or cataphyll which is always located at the base of the previous older petiole/leaf, or in the case of some cataphylls on the apex of a dormant tuber.
  No aroid produces a new leaf from any area of a previous  petiole except from the sheath at its base.    No photo came with your posting.

  Good Growing,


  >>Some weeks ago, we observed on one of our Am. bulbifer 
  that a second petiole emerged about 4 cm above the soil 
  from the existing petiole. Later, this second petiole broadened
  downwards, as shown on the picture. The arrow indicates
  the original emerging point. Hence branching of petioles is
  possible within the genus Amorphophallus and, as Wilbert
  wrote to us, is also known e.g. from A. paeoniifolius and
  A. glossophyllus.

  Best regards
  Margret & Dietmar Kiehlmann

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