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Arisaema Enthusiast Group (AEG) Discussion List (and other=
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Sun Jun 14 16:27:56 CEST 1998
hardy Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: Paul Christian <paul at RAREPLANTS.CO.UK>
Subject: Re: Arisaema ochraceum
In-Reply-To: <454aed26.3581e580 at aol.com>
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<html><div>Jim, all</div>
<br>
<div>I am sorry if it has taken me a few days to get around to posting on
this. Yet another email installation and new set up!</div>
<br>
<div>I think that the questions has evolved into a double one Jim
!</div>
<br>
<div>A.ochraceum Schott. Is the first issue, I think Guy is your man on
this one. I have not seen the original reference paper for a very
long time, since I left Livepool (University- library) nor given the
matter much thought, as I think I know the answer to part
two.....</div>
<br>
<div>A.ochraceum (Hort ex India) syn Should be shot, (sorry!) is the
second.</div>
<div> I no longer offer it as whatever turns up as A.ochraceum is never
anything different from one of other Indian species. Most of the
time they are small tubers which produce a radiatisect leaf and
hardly ever flower. </div>
<br>
<div>I think that this is because they are really babies, or tubers
produced from the stolons of mature plants of what it really is.
</div>
<div>This is A. concinnum. The reason the don't flower is that they
are small, as they get bigger they give their identity away. I
suspect that this is what Ray's is doing now. I don't know if they
start with three leaf divisions and then make five and then make more,
BUT, I have just been out and checked the stock of A. concinnum
here. </div>
<br>
<div>The stock is true and even and there is not a rogue in it (*rah
rah*) the largest plant comes to above my waist and has 14 leaflets, the
smallest is a tot only 6cm tall and that has five leaflets. I can
manage a leaf with any number between the two (except 7 in case anyone
comes and checks) </div>
<br>
<div>I would think thatit is not unreasonable to suggest they could
therefore get bigger as they get older. I had a "cross
check" and this also happens with ciliatum CT369 and whatever
"echinatum" turns out to be (another post on this), fewer
leaflets when small. The clustering of some of the leaflets and the
fact that they point in a different direction to the others is common to
all of the three species mentioned and I think is developmental, showing
the evolution of radiatisect leaves. I digress.</div>
<br>
<div>In short, I don't offer ochraceum because I don't think there is a
species answering to the name. The Indian nursery plant is, based
on experience, almost invariably (but not guaranteed to be) A.
concinnum. </div>
<br>
<div>The Chinese material is now flowering and has a mind-rending variety
of species, many mixed, some I just do not recognise, some real surprises
and will I fear mean that I will take up the next week in writing - set
your filters now</div>
<br>
<br>
<br>
<br>
<br>
<div>At 22:35 12/06/98 -0400, you wrote:</div>
<div>>Paul, Guy et al</div>
<div>></div>
<div>>Over the past ten years I have accumulated several arisaemas
called A.</div>
<div>>"ochraceum". The first came from WeDu Nursery in 1987,
and I have also</div>
<div>>obtained them from Paul Christian and J. Amand. They have all
been exactly the</div>
<div>>same, as far as I can tell. I have 3 plants at this point but
none has ever</div>
<div>>flowered.</div>
<div>></div>
<div>>However, even without flowering, they are very distinctive. They
are smallish,</div>
<div>>have pure white stems and three leaflets. The latter are
particularly notable</div>
<div>>in that they have prominent vein patterns, giving them an almost
sculptured</div>
<div>>look, similar to the "Mrs. French" form of A.
triphyllum.</div>
<div>></div>
<div>>I know that the conventional wisdom has been to consider this
synonymous with</div>
<div>>A. nepenthoides, but I see not the slightest resemblance
(allowing for the</div>
<div>>fact that I have yet to see one in flower). The stem alone would
rule out the</div>
<div>>synonomy for me.</div>
<div>></div>
<div>>Paul, I see that you are no longer offering this, but you must
have seen some</div>
<div>>in flower while you were stocking it. You may still have some in
your</div>
<div>>collection? Has anyone else grown this plant to flowering? I
think John Gwynne</div>
<div>>had it at one time, but I don't know if it flowered.</div>
<div>></div>
<div>>Anyone have any opinion/experience to share?</div>
<div>></div>
<div>>Jim McClements</div>
>
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