hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

RE: P. tortum a.k.a. 'spider Philo., etc.

  • Subject: RE: P. tortum a.k.a. 'spider Philo., etc.
  • From: Tom Croat <Thomas.Croat@mobot.org>
  • Date: Wed, 23 Jan 2002 12:41:14 -0600 (CST)

Title: RE: P. tortum a.k.a. 'spider Philo., etc.

        The plant you are talking about is P. tortum alright.  I have collected it in Acre and seen it in Amazonas as well.  The type is from north of Manaus.


-----Original Message-----
From: Julius Boos [mailto:ju-bo@email.msn.com]
Sent: Wednesday, January 23, 2002 9:02 AM
To: Multiple recipients of list AROID-L
Subject: P. tortum a.k.a. 'spider Philo., etc.

Dear Friends,

Just a note towards attempting to straighten out the true I.D. of a
Philodendron sp. that has been around for some time under quite a few
incorrect names.   Photos of a plant in bloom submitted by Jim ('Hammer')
Langhammer have recently
been posted on the aroid-l site of Les Kallus under the 'already identified
species' section with the correct identification of the plant as
Philodendron tortum Mayo and Soares (in press).   I am told that it occurs
naturally in E. Brazil (Eduardo, please confirm?).  A single leaf of this
species is illustrated in 'The Genera of Araceae' on pg. 171,
'D' ,  and incorrectly I.D.`d as P. angustisectum.    Two different vars. or
collections of this
same plant, one with thinner, more delicate leaf divisions than the other
but both the same species have for years been sold by Albert & Merkle Bros.
Inc. here in Florida as P. 'pinnatifidium' and P. 'distantilobum', both
incorrect names for this distinctive plant.   Mr. Merkle, who is an amazing
90 years old and still very active and works at his nursery every day, told
me that he no longer recalls the source of his two parent plants, but that
he used to travel to collect plants in various countries in S. America
including Brazil back in the 'old days'.   You may recall Mr. Merkle`s table
at several of the last IAS shows in Miami where I saw several small pots of
these plants for sale in mis-labeled 4" pots for around $5.00 each.
I believe that Denis at Silver Chrome produced a number of these plants
from tissue culture several years ago and it was marketed to bulk outlets
such as 'Frank`s Nursery' chain up North chain as  and perhaps others
USA-wide as 'Spider Philodendron'.  (any info on the source of your original
plant, Denis?).
SO---anyone who has a slow-growing, compact spider-leaf Philo. sp. that has
following features can now place an ID tag on it with confidence!   You
plant should be fairly compact-growing, and as an adult plant demonstrate a
short, very thick, curved and claw-like structure at the base of the leaves.
The specific name 'tortum' is reference to this distinctive and obvious
feature on this species.
I have recently seen another Philodendron species in a friend`s g/house that
also has finely-divided leaves, but this species 'vines' everywhere and the
internodes are thinner than a pencil and LONG between leaves, perhaps
10-12", while the internodes of true P. tortum are around 4" long and with
as thick as a finger or thumb, creating a much more 'compact' plant.
My hope is that this posting may clear up SOME of the confusion surrounding
this wonderful aroid.   Thanks to Jim Langhammer and many others who
provided information and showed me specimens.
Good growing,

Julius Boos

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index