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  Symmetry in Amorphophallus
From: "Chad E. Husby" <chusby at vt.edu> on 1998.09.26 at 21:25:18(2631)
Dear Aroid List Members,

I am very interested in symmetry in plants. From viewing many of
the photos availble on the web, the only Amorphophallus species that seemed
to have regular ("perfect") leaf symmetry was A. muelleri, with two leaves
of equal size and shape on each of the three leaf branches of the petiole
trifurcation. Does A. muelleri retain this regular symmetry as it grows,
or is it only characteristic of young leaves? Does anyone know of any
other Amorphophallus species which exhibit this sort of regular symmetry?

Thank you very much for your help.

Sincerely yours,

Chad Husby

From: "Chad E. Husby" <chusby at vt.edu> on 1998.09.28 at 21:55:03(2633)
Dear List,

Based upon some responses I have received, I fear that I was not
sufficiently clear in my initial posting. Although the Amorphophallus
species that I have observed (both living specimens of A. konjac and A.
titanum and pictures of other species on the web) have near "trilateral
symmetry" in overall shape and size, the precise lobing patterns and number
of leaflets on the three leaf divisions tend to be somewhat different.
However, this did not appear to be the case in the A. muelleri pictured at


This A. muelleri appears to have nearly identically shaped leaflets
(without any irregular lobing) on each of the the trifurcations of the
petiole. I would like to know whether this symmetry is typical of A.
muelleri. I would also like to know whether this leaf pattern is found in
any other Amorphophallus species.


Chad Husby

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