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  Phil. squamiferum et al
From: "Carlo A. Balistrieri" <cabalist at facstaff.wisc.edu> on 1997.02.26 at 18:15:16(438)
Don Burns was recently good enough to send a piece of Phil. squamiferum to
be inlcuded in my little "teaching" collection. (I use the plants to give
talks to kids in schools in our area and to other groups).

What about that peduncle--any ideas on the adaptive purpose for the strange
protrusions (maybe to prevent crawlers from getting to the leaf? Or perhaps
to assist in "grabbing" hold as the plant climbs through vegetation?). Are
there other species with equally interesting appendages?

Carlo

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From: golfstra at cyvox.net.au on 1997.02.27 at 07:16:48(440)
Carlo A. Balistrieri wrote:
>
> Don Burns was recently good enough to send a piece of Phil. squamiferum to
> be inlcuded in my little "teaching" collection. (I use the plants to give
> talks to kids in schools in our area and to other groups).
>
> What about that peduncle--any ideas on the adaptive purpose for the strange
> protrusions (maybe to prevent crawlers from getting to the leaf? Or perhaps
> to assist in "grabbing" hold as the plant climbs through vegetation?). Are
> there other species with equally interesting appendages?
>
> Carlo
+More
From: Eduardo Gomes Goncalves <eggon at guarany.cpd.unb.br> on 1997.02.28 at 07:48:16(442)
On Wed, 26 Feb 1997, Carlo A. Balistrieri wrote:

> Don Burns was recently good enough to send a piece of Phil. squamiferum to
> be inlcuded in my little "teaching" collection. (I use the plants to give
> talks to kids in schools in our area and to other groups).
>
> What about that peduncle--any ideas on the adaptive purpose for the strange
> protrusions (maybe to prevent crawlers from getting to the leaf? Or perhaps
> to assist in "grabbing" hold as the plant climbs through vegetation?). Are
> there other species with equally interesting appendages?
>
> Carlo

+More
From: "Carlo A. Balistrieri" <cabalist at facstaff.wisc.edu> on 1997.02.28 at 08:13:30(444)
My blip on the peduncle vs. petiole matter. I should know better. Thanks to
Christian for pointing it out.

Thanks to Neil for saving me somewhat by indicating that the peduncle also
has these "hairs" although to a lesser degree than the petioles.

Will no one hazard a guess as to the evolutionary raison d'etre for these
appendages?

Carlo

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