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RE: [Aroid-l] Philodendron Help

  • Subject: RE: [Aroid-l] Philodendron Help
  • From: "Tom Croat" <Thomas.Croat@mobot.org>
  • Date: Sun, 7 Jan 2007 18:30:22 -0600
  • Content-class: urn:content-classes:message
  • Thread-index: AccytDs/3kse6N+7Q/Ggu21dKjMv/QAB9NOA
  • Thread-topic: [Aroid-l] Philodendron Help



            It surely is a Monstera but I am not at all sure that it is M. dubia. In its most juvenile stages that species is a shingle plant with grayish mottling.




Tom Croat, P. A. Schulze Curator of Botany 

Missouri Botanical Garden

Box 299, St. Louis, Missouri 63116

(314) 577-5163


Please send images to our FTP Server.




From: aroid-l-bounces@gizmoworks.com [mailto:aroid-l-bounces@gizmoworks.com] On Behalf Of Steve Lucas Exotic Rainforest
Sent: Sunday, January 07, 2007 12:15 PM
To: Discussion of aroids
Subject: Re: [Aroid-l] Philodendron Help


I just posted one of Brian's photos on my website which appears to indicate "Silver Queen" is the juvenile form of M. dubia.  Anyone who wishes to see Brian's photo and comment is invited to do so:



Steve Lucas


----- Original Message -----

Sent: Saturday, January 06, 2007 11:48 AM

Subject: Re: [Aroid-l] Philodendron Help


Harry (and others who have sent email directly),


I received some nice photos from Brian Williams this morning that appear to support the idea the 'Silver Queen' is the juvenile form of M. dubia.  Brian's photos show the plant progressing into the adult stages.  Since I can't get an absolute verification of that fact as yet I'm hesitant to declare it so but more than one grower has indicated the same idea to me.  Of course, others differ strongly with that opinion.  The plant that was identified by the person at the Huntington as M. siltepecana has begun to climb a nearby log and has only recently begun to produce holes in the leaves.  I don't consider it large enough or the holes distinctive enough yet to photograph well but the leaves are over 20cm at this point.  I've had it in the ground for about 18 months and have tried not to disturb it so the plant can develop as much as possible in my artificial "rainforest". 


Although I grow some plants in pots, I grow as many as possible planted in the soil or attached to artificial logs.  The soil in our atrium was prepared to simulate rainforest conditions.  I maintain a steady temperature and extremely high humidity all the times.  As a result, many of my specimens have grown unusually large in a relatively short period of time.  As I've reported before, the A. regale has a leave well over 70cm and is currently in bloom.  I've only had the plant 15 months and it had no leaves when it arrived.  Knowledgeable growers who visit often comment they have not seen plants growing as large.  I was fortunate enough to have spent a fair amount of time in rainforests around the world and set out to duplicate those conditions as closely as possible when I built the atrium nearly 5 years ago.


Several others have indicated they believe I have my identifications backwards on the M. dubia and M. siltepecana plants and that is certainly possible.  I just attempt to post what I can verify from sources with more knowledge and experience than I.  I invite anyone to comment on anything I have posted on the site and make suggestions or corrections.  My only goal is to try to get the information as accurate as possible.  One thing I find most enjoyable is when other knowledgeable growers volunteer good information attempt to help each other with good information.  So keep it coming!


Steve Lucas


----- Original Message -----

Sent: Saturday, January 06, 2007 6:54 AM

Subject: RE: [Aroid-l] Philodendron Help


Steve, I totally agree with you. This plant seems to defy identity. I had Rhaphidophora cryptantha labeled Monstera dubia for years so I can surely be incorrect and am quite often. I have never seen the plant I have labeled M siltepecana revert to any type of foliage other than what it has now. I would assume that if it were M dubia it would in some situations revert to the sprawling climber that shingles but I could be wrong.


What is the consensus on this plant if any from the list.


Harry Witmore

Cloud Jungle Epiphytes



Steve Said:

There is obviously more than a bit of disagreement on what "species" the plant known as the Silver Queen actually is. 


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