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Tue May 11 20:22:08 CEST 2010

hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: jimmcclem <jimmcclem at AOL.COM>
Subject: Re: Pinellias
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On May 11, 2010, at 10:20:55 AM, Henry <treehugger53ah at YAHOO.COM>
wrote:

I have no science to back this up, but I think plants just really want
to make seeds and can figure out how to get around whatever has been
blocking them.

Sometimes making seeds without pollination as dandelions do.

In the very early days of Arisaema-L there were some discussions about
apomixis as a possible explanation of how an apparently female
Arisaema plant could produce fertile seed.

That gets into the question of whether some plants in the process of
switching sex can have a year or so of being bisexual. I seem to
recall that A. candidissimum was the species in question.

I'll see if the archives are helpful.

Jim

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

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<html><head></head><body name="Mail Message Editor"><div><span class=="Apple-style-span" style="font-style: normal; text-decoration: none; fo=nt-weight: bold; font-size: 14px; font-family: Arial; color: black; backg=round-color: transparent; "><br></span></div><div id="replyPrefaceEleme=nt">On May 11, 2010, at 10:20:55 AM, Henry &lt;treehugger53ah at YAHOO.COM&g=t; wrote:</div><br><blockquote style="padding-left: 5px; margin-left: 5=px; border-left-width: 2px; border-left-style: solid; border-left-color: =blue; color: blue; "><span class="Apple-style-span" style="border-col=lapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: =medium; font-style: normal; font-variant: normal; font-weight: normal; le=tter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; =text-indent: 0px; text-transform: none; white-space: normal; widows: 2; w=ord-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-=vertical-spacing: 0px; -webkit-text-decorations-in-eff!
ect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0p=x; "><span class="Apple-style-span" style="font-family: monospace; fo=nt-size: 11px; ">I have no science to back this up, but I think plants ju=st really want to make seeds and can figure out how to get around whateve=r has been blocking them.<br><br>Sometimes making seeds without pollinati=on as dandelions do.</span></span></blockquote><div><span class="Apple-=style-span" style="font-style: normal; text-decoration: none; font-weig=ht: bold; font-size: 14px; font-family: Arial; color: black; background-c=olor: transparent; "><br></span></div><div><span style="font-style: nor=mal; text-decoration: none; font-weight: bold; font-size: 14px; font-fami=ly: Arial; color: black; background-color: transparent; "><br></span></di=v><blockquote style="padding-left: 5px; margin-left: 5px; border-left-w=idth: 2px; border-left-style: solid; border-left-color: blue; color: blue=; "><span class="Apple-style-span" style="border-col!
lapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-siz

e: medium; font-style: normal; font-variant: normal; font-weight: normal;=letter-spacing: normal; line-height: normal; orphans: 2; text-align: aut=o; text-indent: 0px; text-transform: none; white-space: normal; widows: 2=; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-bord=er-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webk=it-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class=="Apple-style-span" style="font-family: monospace; font-size: 11px; "><b=r></span></span></blockquote><div><span class="Apple-style-span" style=="font-style: normal; text-decoration: none; font-weight: bold; font-size:=14px; font-family: Arial; color: black; background-color: transparent; "=><br></span></div><div><span class="Apple-style-span" style="font-sty=le: normal; text-decoration: none; font-weight: bold; font-size: 14px; fo=nt-family: Arial; color: black; background-color: transparent; ">In the v=ery early days of Arisaema-L there were some dis!
cussions about apomixis as a possible explanation of how an apparently f=emale Arisaema plant could produce fertile seed.<div><span class="Apple=-style-span" style="font-style: normal; text-decoration: none; font-wei=ght: bold; font-size: 14px; font-family: Arial; color: black; background-=color: transparent; "><br></span></div><div><span class="Apple-style-sp=an" style="font-style: normal; text-decoration: none; font-weight: bold=; font-size: 14px; font-family: Arial; color: black; background-color: tr=ansparent; ">That gets into the question of whether some plants in the pr=ocess of switching sex can have a year or so of being bisexual. I seem to=recall that A. candidissimum was the species in question.<div><span clas=s="Apple-style-span" style="font-style: normal; text-decoration: none=; font-weight: bold; font-size: 14px; font-family: Arial; color: black; b=ackground-color: transparent; "><br></span></div><div>I'll see if the arc=hives are helpful.<div><span class="Apple-style-span!
" style=""><br></span></div><div><span class="Apple-style-span" styl=e=

"">Jim</span></div></div></span></div></span></div><div><span class="Ap=ple-style-span" style="font-style: normal; text-decoration: none; font-=weight: bold; font-size: 14px; font-family: Arial; color: black; backgrou=nd-color: transparent; "><br></span></div><div><span class="Apple-style=-span" style="font-style: normal; text-decoration: none; font-weight: b=old; font-size: 14px; font-family: Arial; color: black; background-color:=transparent; "><br></span></div><div id="signature_E9AE2215-D638-4BA0-=9356-13BA0C374D03" style="word-wrap: break-word; -webkit-nbsp-mode: spa=ce; -webkit-line-break: after-white-space; "><div id="sig_start">--<br>=</div>Jim McClements<div>50 S. Prestwick Ct.</div><div>Dover, DE 19904, U=SA</div><div>Zone 7a</div><div>302-734-2836</div><div id="sig_end"></di=v></div><div class="aol_ad_footer" id="uCF917B7913844017962A7A285D9C8=81D"></div></body></html>
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