-----Original Message-----
> Date: Sat, 01 Jun 2013 12:38:28 +0200
> Subject: Re: [Aroid-l] Fwd: FW: Re: Message from Bernhard about
/>
> Typhonium
> From: "Wilbert Hetterscheid"
/>
> To: "'Discussion of aroids'"
>
Hi Christopher,
Such a mark is the scar of the previous inflorescence
(-peduncle). It is also a clue as to the "new"tuber is built
from the previous one. The old one is obviously not just "swallowed
up" by the new growth but only partly and then new tissue is added.
It is in fact a vertical rhizome, that builds a new module every year
and discards of most of the pre-last module in the process but not all
of it.
Cheers,
WIlbert
Van: aroid-l-bounces@www.gizmoworks.com
[mailto:aroid-l-bounces@www.gizmoworks.com] Namens D. Christopher
Rogers
Verzonden: woensdag 29 mei 2013 15:36
/>Aan: StroWi@t-online.de; Aroid-L
Onderwerp:
[Aroid-l] Fwd: FW: Re: Message from Bernhard about Typhonium
/>
Hi Christopher.
/>thanks for your explanations and your
points illustrated by your "ballon"picture of the meristem/growing point describes nicely what my picture of the growing of a Typhonium
tuber was or still is.
I notioced the
remains of the old not
totally consum tuber at
the very bottom of the tuber or below the new grown tuber
at
the end of the growing season as well.
/>However, I cannot follow your suggestion on the marks
our very observant member olvi found.
The
very simple reason is that
exactly one mark is
found on one tuber that is big enough to have had a
flower at the begining of the growing
season.
I attachhed a picture
of some of my Sauramatum (syn. Typhonium)
venosum 'Indian Giant'.
/>
The marks Olvi found are "marked" with
an arrow.
The very odd thing
is that always only one of these marks is found on a
tuber and interestingly
always on at more or
less the same position.
/>I guess
this speaks strongly
against your suggestion of a
coincidential occuring rot of an offset. In other words, why should it always be one rooting offset (and not more) and alway in
a position obove the "level" where the new offsets grew (I broke off the new offsets; those are the
lighter marks).
But what would then be an reasonalbe explaination for these marks?
/>
/>BTW, the small
tubers infront of the big ones in the
picture have not had a flower
(bud) at the beginning of the growing
season and such samll tubers never
show these marks.
So
I still wonder, if the marks can be associated with the
peduncle from the beginning of the
growing season.
/>
/>Still looking forward for any comment........ maybe
from Lord P(ure Wisdom) or any
other botanist?????
Cheers, Bernhard.
/>
/>
-----Original Message-----
> Date: Tue, 07 May
2013 20:46:20 +0200
> Subject: Re: [Aroid-l] Message from
Bernhard about Typhonium
> From: "D. Christopher
Rogers"
href="mailto:branchiopod@gmail.com"branchiopod@gmail.com/a>
/>> To: Discussion of aroids
href="mailto:aroid-l@www.gizmoworks.com"aroid-l@www.gizmoworks.com/a>
/>
>
Hiyer, Bernhard!
I think that
you mean the mark that would appear to be a depression in the side of
the tuber. If that is the case, I think that is where and offset was
released, and some rot occurred at the union and then healed.
/>I have had plants of this species and some Amorphophallus that would
occasionally not completely consume the old tuber. However, the remains
of the old tuber were always directly below the new tuber. The central
primary growing point of the plant is that central point, surrounded by
the primary roots, where the leaf and inflorescence grow up and the
tuber shrinks and and regrows from the bottom. This is the apical
meristem, and the leaf and inflorescence will always grow from that same
spot, year after year.
Remember that as the
inflorescence and leaf grow, the tuber shrinks towards the meristem,
like a deflating balloon. It regrows in the same way, expanding outward
like a balloon from that same point. It is not like Anchomaenes or
Gonatopus, where leaves can grow anywhere over the upper surface of the
tuber and the tuber is not completely consumed.
I
really hope that this helps!
Happy days,
/>
Christopher
On Tue, May 7, 2013 at 11:05 AM, Zach
DuFran
href="mailto:zdufran@gmail.com"zdufran@gmail.com/a>
wrote:
Aroiders,
style="margin:0px;">in our German amorphohallus-forum we have a question
to explain a often seen mark on big T. venosum tubers.
style="margin: 0px;" style="margin:0px;">For details see the pictures
and contributions in posts # 96, 93, 97 and 98.
The forum language is German but at the bottom
of the page there is translation fuction implemented.
style="margin: 0px;" style="margin:0px;">In German:
style="margin: 0px;" style="margin:0px;">
href="http://www.amorphophallus-forum.de/typhonium-venosum-im-originalzustand-typhonium-sauromatum/andere-araceaen-nach-gattungen-f27/t316-f9/index5.html">http://www.amorphophallus-forum.de/typhonium-venosum-im-originalzustand-typhonium-sauromatum/andere-araceaen-nach-gattungen-f27/t316-f9/index5.html
/>
maybe the link with the
translated page works also:
style="margin:0px;">
href="http://www.amorphophallus-forum.de/index.php?page=TranslatedThread&threadID=316&pageNo=5&languageCode=en">http://www.amorphophallus-forum.de/index.php?page=TranslatedThread&threadID=316&pageNo=5&languageCode=en
/>
The questionis, if the
mark on picture 2 in post 93 can be related to the peduncle.
style="margin: 0px;" style="margin:0px;">(I just notice that some of the
pictures are not displayed automatically in the English translation; you
might have to click the links; sorry.
style="margin:0px;">for instance:
href="http://www.amorphophallus-forum.de/index.php?page=Attachment&attachmentID=1251">http://www.amorphophallus-forum.de/index.php?page=Attachment&attachmentID=1251
)
There is
controversion, because it is assumed that the old tuber is consumed /
replaced totally (post # 96) and in this case the mark cannot be
associated with the lst year's peduncle.
On the other hand there might be an indication
that the offsets go back to buds that might be present on the tuber at
the beginning of the new growing cycle and that those parts of the tuber
are still present at the end of the growing cycle below the mark on the
tuber (in other words: the old tuber is not consumed / replaced totally)
- see post # 97 and picture 1 and 6 in post # 93.
style="margin: 0px;" style="margin:0px;">I hope these questions is
somehow understandable....... ;-)
style="margin:0px;">Looking forward to any comment !
style="margin: 0px;" style="margin:0px;">Cheers,
Bernhard.
/>_______________________________________________
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--
D. Christopher Rogers
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