Re: [Aroid-l] Intrageneric crossing?



From : 	Eugene Hoh <eugene_hoh@yahoo.com.au>



Reply-To : Discussion of aroids <aroid-l@gizmoworks.com>

Sent : Saturday, January 21, 2006 8:53 AM

To : Discussion of aroids <aroid-l@gizmoworks.com>

Subject : Re: [Aroid-l] Intrageneric crossing?



Hello Eugene,



I don`t remember the claims that you mention, but the world is FULL of
shysters who really believe that there is a fool whose money just NEEDS to
be taken every minute or so. Some claims may be based on misinformation on
the true identification of a certain plant, for example I heard that there
was a claim out of Indonesia of a Xanthosoma X Caladium cross, this COULD
be, as the 'lines' between these closely related genera are sometimes
blurred ( as they presently seem to be between Alocasia and Colocasia), and
even the experts make mistakes w/ these groups. As an example of this, on
pg. 208 of 'The Genera of Araceae" on the Caladium page of illustrations,
'A' and 'C' are said to be Caladium aristeguietae, this plant was ORIGINALLY
described as a species of Caladium, but had been reassigned to Xanthosoma
(based on a closer examination of the pollen) BEFORE this book was
published, but there it is, before God and man, identified as a species of
Caladium. So--- if someone used this species in a cross with say
Xanthosoma acutum, they would probably succeed ( I have seen a MAGNIFICENTLY
beautiful cross of Xanthosoma heribolifolium and Xanthosoma acutum done by a
friend in W. Florida!), and another story of an intergeneric cross would be
spawned.

By the way, I have a jackalope baby here (Jack 'rabbit' X antelope), you
should see how BIG he is, and size of the horns on that little sucker, and
see him hop! Any offers???



Good Growing all,



Julius




hi everyone,



Surely these are frangipani, Plumeria rubra
(Apocynaceae)!

The 'giveaways' are what look like petiole scars on
the stem in the middle picture, the venation of the
green leaf in the lower one, and the overall
disposition of the foliage (hm... very scientific!).
Though I haven't seen these variegated ones before.
Growing up in Sydney, the appearance of Plumeria has
been "imprinted" on me - they were planted in
practically every garden in the older parts of town.
As a kid, you quickly learn to recognise the
climbable-looking little trees whose branches, evilly,
snap off and send you crashing to the ground...


Speaking of intergeneric crosses...  I'm reminded of
"x Homalocasia", the supposed hybrids between
Homalomena and Alocasia, which I gather were debunked
as a hoax?

As well as "x Homalocasia miamiensis"  (actually
Homalomena lindenii, as mentioned in Exotica), there
seem to have been "others". One I saw in York
Meredith's collection back in the 1980s had somewhat
sagittate leaves, variegated a bit like Homalomena
wallisii. (I've not seen it since, but some
Schismatoglottis look suspicously similar...)

Does anyone remember these, or know what the story
was?


cheers
Eugene




Eugene Hoh
Sydney, Australia






--- Peter Boyce <botanist@malesiana.com> wrote:




Folks



I'm inclined to agree with Wilbert about the top and

bottom image; certainly

the leaf emergence of the top image and the venation

on the bottom look

'wrong'. In fact, I'd go so far as to say the bottom

image reminds me

strongly of a member of the Rosaceae, Photinia x

fraseri.



The middle image I'm not so sure about - to my eyes

there are two 'aroidish'

inflorescence/infructescences in the middle of the

leafy crown. I've tried

enlarging the image but he quality is too poor to

reveal anything definite.



Aglaonema and Dieffenbachia are a fair distance

apart in terms of

relationship. Curiously, if someone posted a claim

of a Aglaonmea x Anubias

or Aglaonmema x Nephthytis hybrid (or indeed

Dieffencachia x Gorgonium!

(sorry Eduardo!) I'd be a lot less sceptical.



Pete







----- Original Message ----- From: Abrimaal

To: Discussion of aroids

Sent: Saturday, January 21, 2006 1:08 AM

Subject: [Aroid-l] Intrageneric crossing?





The Aglaonema group is discussing now if

Dieffenbachia can be crossed with Aglaonema... I know that they belong to
deiierent

tribes and have different pollination biology, however the Group says to me

that the Japanese crossed Alocasia x Colocasia (the same tribe). Does
anybody

know anything about this Alo-Colocasia hybrid?



Marek Argent







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