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Wed Jun 28 18:24:01 CEST 2006

hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: Adam Fikso <irisman at AMERITECH.NET>
Subject: Re: Arisaema / Pinellia
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To add my two cents:   It sounds as if the old grey battered taxonomist =
knows what he's doing.  For me,though, it's simpler -in my garden--A. =
dracontium is always a medium green, while P. pedisecta is yellow-green. ==
Does this diference hold in Europe and elsewhere?  Further, the =
leaflets in dracontium are separate in spaceand are flat  with each =
leaflet having its own space, while in P. pedatisecta some leaflets tend ==
to overlap, and the edges are ruffled.  Adam in Glenview, IL

From: Jim McClements, Dover, DE z6 
To: ARISAEMA-L at NIC.SURFNET.NL 
Sent: Wednesday, June 28, 2006 9:36 AM
Subject: Re: Arisaema / Pinellia

In a message dated 6/28/06 8:21:35 AM, genebush at OTHERSIDE.COM writes:

Humm..

I would have thought the other way around... unless my memory is off ==
a bit... and sometimes that happens. Correct me if I am wrong, but does =
not A. dracontium have the bloom on the same stem as the foliage? =
Pinellia has the inflorescence on a separate stem... one for foliage, =
one for "bloom"?

I agree with Gene on this as a rule of thumb. . Most arisaemas have =
the leaf petiole and the flower peduncle arising from the pseudostem, =
which, however, is sometimes quite short and could lead to confusion. =
Also, as Gusman points out in his book, evergreen species, such as A. =
omkoiense, don't follow that rule.

My reference to foliage was to distinguish A. dracontium from Pinellia ==
tripartita, where there is an obvious difference in the leaflet number =
and pattern. However, Pinellia pedatisecta and A. dracontium are quite =
similar except for the absence of the pseudostem in the Pinellia. In =
fact, an "A. dracontium" that I received recently and seemed to be =
growing with remarkable vigor has "morphed" into a P. pedatisecta!

Jim

Jim McClements
50 S. Prestwick Ct.
Dover, Delaware 19904, USA
Zone 7a
302-734-2836

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<DIV>To add my two cents:&nbsp;&nbsp; It sounds as if the old grey =
battered 
taxonomist knows what he's doing.&nbsp; For me,though, it's =
simpler&nbsp;-in my 
garden--A. dracontium is always a medium green, while P. pedisecta is=2=0
yellow-green.&nbsp; Does this diference hold in Europe and =
elsewhere?&nbsp; 
Further, the leaflets in dracontium are separate in spaceand are =
flat&nbsp; with 
each leaflet having its own space, while in P. pedatisecta some leaflets ==
tend to 
overlap, and the edges are ruffled.&nbsp; Adam in Glenview, IL</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><B>From:</B> <A title=JimMcClem at AOL.COM =
href="mailto:JimMcClem at AOL.COM">Jim 
McClements, Dover, DE z6</A> </DIV>
<BLOCKQUOTE 
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=ARISAEMA-L at NIC.SURFNET.NL 
=
href="mailto:ARISAEMA-L at NIC.SURFNET.NL">ARISAEMA-L at NIC.SURFNET.NL</A>==
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, June 28, 2006==
9:36 
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Arisaema / =
Pinellia</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT face=Geneva =
color=#000000 
size=2 FAMILY="SANSSERIF"><BR>In a message dated 6/28/06 8:21:3=5 =
AM, <A 
href="mailto:genebush at OTHERSIDE.COM">genebush at OTHERSIDE.COM</A>=2=0
writes:<BR><BR><BR>
<BLOCKQUOTE 
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2p=x =
solid; MARGIN-RIGHT: 0px" 
cite="" TYPE="CITE"></FONT><FONT face=Geneva color=#000=000 =
size=2 
FAMILY="SANSSERIF"><BR>Humm..<BR><BR>I would have thought the =
other way 
around... unless my memory is off a bit... and sometimes that =
happens. 
Correct me if I am wrong, but does not A. dracontium have the bloom =
on the 
same stem as the foliage? Pinellia has the inflorescence on a =
separate 
stem... one for foliage, one for =
"bloom"?<BR><BR></BLOCKQUOTE></FONT><FONT 
face=Geneva color=#000000 size=2 FAMILY="SANSSERIF"><BR=><BR>I =
agree with Gene 
on this as a rule of thumb. . Most arisaemas have the leaf petiole and ==
the 
flower peduncle arising from the pseudostem, which, however, is =
sometimes 
quite short and could lead to confusion. Also, as Gusman points out in ==
his 
book, evergreen species, such as A. omkoiense, don't follow that 
rule.<BR><BR>My reference to foliage was to distinguish A. dracontium =
from 
Pinellia tripartita, where there is an obvious difference in the =
leaflet 
number and pattern. However, Pinellia pedatisecta and A. dracontium =
are quite 
similar except for the absence of the pseudostem in the Pinellia. In =
fact, an 
"A. dracontium" that I received recently and seemed to be growing with ==

remarkable vigor has "morphed" into a P. 
pedatisecta!<BR><BR>Jim<BR><BR><BR><BR>Jim McClements<BR>50 S. =
Prestwick 
Ct.<BR>Dover, Delaware 19904, USA<BR>Zone 
7a<BR>302-734-2836<BR></BLOCKQUOTE></FONT><FONT face=Geneva =
color=#000000 size=2 
FAMILY="SANSSERIF"></FONT></FONT></BODY></HTML>

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