Albizzia julibriss leaf organs question

[Wolfgang Schechinger]

Dear all,

please don't beat me if the answer really may be found in textbooks, but so
far I could not get it. That's why I am addressing it to you. the experts!

Here is my question: Looking at the leaves of an Albizzia sp. (probably A.
julibrissin, though the flowers are completely white, it's also called
"sleeping tree" sice it folds the leaves at night), I noticed two organs on
each leaf (one at the beginning and and one at the end which are 1 to 3 mm
in diameter and of ellipsoid shape).

Could anyone please point me to a reference where I might find some clues
on the role of these organs? Screening standard text books on plant biology
and-physiology in the library did not yield any result; Albizzia just seems
to be the textbook example for sleeping trees ;-)

All input is welcome!

Wo (who is at home in bionet.molbio.methds-reagnts)


Wolfgang Schechinger


---

[Cereus-validus]

Compare with allied Mimosa pudica and not allied Oxalis.


"Wolfgang Schechinger" > wrote in message
. ..
> Dear all,
>
> please don't beat me if the answer really may be found in textbooks, but
so
> far I could not get it. That's why I am addressing it to you. the experts!
>
> Here is my question: Looking at the leaves of an Albizzia sp. (probably A.
> julibrissin, though the flowers are completely white, it's also called
> "sleeping tree" sice it folds the leaves at night), I noticed two organs
on
> each leaf (one at the beginning and and one at the end which are 1 to 3 mm
> in diameter and of ellipsoid shape).
>
> Could anyone please point me to a reference where I might find some clues
> on the role of these organs? Screening standard text books on plant
biology
> and-physiology in the library did not yield any result; Albizzia just
seems
> to be the textbook example for sleeping trees ;-)
>
> All input is welcome!
>
> Wo (who is at home in bionet.molbio.methds-reagnts)
>
>
> Wolfgang Schechinger
>
>
> ---

[Monique Reed]

Hello,

Many members of the Mimosaceae (or Mimosoideae, if you put legumes in
one family), have glands on the leaves. If I recall correctly, n at
least some species, these function as nectaries to attract
pollinators.

M. REed

Wolfgang Schechinger wrote:
>
> Dear all,
>
> please don't beat me if the answer really may be found in textbooks, but so
> far I could not get it. That's why I am addressing it to you. the experts!
>
> Here is my question: Looking at the leaves of an Albizzia sp. (probably A.
> julibrissin, though the flowers are completely white, it's also called
> "sleeping tree" sice it folds the leaves at night), I noticed two organs on
> each leaf (one at the beginning and and one at the end which are 1 to 3 mm
> in diameter and of ellipsoid shape).
>
> Could anyone please point me to a reference where I might find some clues
> on the role of these organs? Screening standard text books on plant biology
> and-physiology in the library did not yield any result; Albizzia just seems
> to be the textbook example for sleeping trees ;-)
>
> All input is welcome!
>
> Wo (who is at home in bionet.molbio.methds-reagnts)
>
> Wolfgang Schechinger
>
> ---

--
ÿWPC5