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Old 14-09-2007, 03:44 PM posted to alt.binaries.pictures.orchids
K Barrett K Barrett is offline
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First recorded activity by GardenBanter: Jul 2006
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Default "Dendrobium nitidum" - the other side of the taxonomic argument

Dave, How wonderful of you to share that work! Yes please send it to the
mormodes address. You are a Pal!

Kath

"Dave Gillingham" wrote in message
...
Kathy, I assume you're on broadband? If so I'll send you the cross index
I've
made for Jones (2006). Only the epiphytes & lithophytes so far - the
terrestrials are in the too hard basket as yet, since I know very little
about
them.

Then I'll try to make the time to scan some information on speciosum from
my
pre-2006 books, since at this stage those are the taxa you're most likely
to see
on labels over there.

If you'd prefer me to use an email address other than the one on the
header of
this posting, email me to advise. I'll hold the email till I see your
reply
here.

On Thu, 13 Sep 2007 07:54:20 -0700, "K Barrett"
wrote:

I agree. Most helpful. I find Dendrobiums very confusing. I looked up D
speciosum on teh SBOE web page and found they have several varieties, as
well as others, so I spent some time googling habitats and ranges just so
I
can get the geography straight in my mind. Or attempt to get the geography
straight in my mind. I fear I suffer from California-itis, anything to
the
east of the Sierra and west of the coast is of no importance. Rather like
that old 'New Yorker' cover showing the world revolving around Manhattan.
http://www.saulsteinbergfoundation.o...ewofworld.html I
bought
Jones' book and havn't opened it yet. I guess that's what I'm doing this
evening... well actually Eric Hunt is talking to our society about the
Borneo trip, so tomorrow...

K Barrett

"John Varigos" wrote in message
.com...
Thanks for the biology lesson Dave. You certainly have done your
homework.

Nice shot too!

Cheers

John

"Dave Gillingham" wrote in message
...
As you can see from the pic of the tag, the original of this plant was
collected
on Mt Tamborine (in the coastal mountains a little SW of Brisbane) by
Hilda
Curtis in 1925.

At that stage of our native orchid classification there were numerous
examples
of the same plant collected by different botanists in different parts
of
its
range and, quite independently, given different names. Also, same name
given to
genuinely different orchids that seemed similar at the time. So
reviews,
such
as those I've bleated about at times, are indeed necessary.

I can't really sort out the history of the name D nitidum, but it's
confusing.
It has been applied to a northern variety of speciosum; to a northern
natural
hybrid, possibly speciosum var curvicaule x gracilicaule; to the SE
Queensland
natural hybrid now known as x gracillimum (speciosum var hillii x
gracilicaule)
to name a few. Then there's the new Jones species Thelychiton nitidum
which he
names the "Atherton Cane Orchid".

Never the less, the general consensus is that this plant is in fact
another D x
delicatum (speciosum var hillii x kingianum). There's certainly none
of
the
coloured blotching on the outside of the sepals that is characteristic
of
a
gracilicaule component (though the canes are long & skinny like
gracilicaule -
much longer than any kingianums I've seen - but with a slightly swollen
base as
might come from kingianum. And it definitely has the glorious
kingianum
perfume.
Dave Gillingham
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Dave Gillingham
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