Re: Structures on a Philo. spadix

---

Dear Alex,

Aloha. Beautiful photos.

Have you seen the beetles or other pollinators on this or other Araceae in your restinga?

Aloha,

Leland


--- On Sun, 6/8/08, Alex Popovkin <p*@gmail.com> wrote:

> From: Alex Popovkin <p*@gmail.com>
> Subject: Re: [Aroid-l] Structures on a Philo. spadix
> To: "Discussion of aroids" <aroid-l@gizmoworks.com>
> Date: Sunday, June 8, 2008, 1:03 PM

> The same process on Philodendron acutatum Schott from the
> restinga area of
> Bahia, Brazil, could be seen in a series of images
> beginning with this one (
> http://www.flickr.com/photos/plants_of_russian_in_brazil/469014436/in/set-72157600110831842/
> ).
>
> Alex Popovkin
> http://www.flickr.com/photos/plants_of_russian_in_brazil/sets/72157600110831842/
>
> On Sun, Jun 8, 2008 at 11:43 AM, <j*@msn.com>
> wrote:
>
> >
> >
> >
> > ________________________________
> > > From: Steve@ExoticRainforest.com
> > > To: aroid-l@gizmoworks.com
> > > Subject: [Aroid-l] : Philodendron sagittifolium
> at female anthesis!
> > > Date: Sun, 8 Jun 2008 08:45:00 -0500
> > >
> > >
> > > Philodendron sagittifolium cut spathe
> >
> > Dear Steve and fellow Aroidophiles,
> >
> > Steve`s excellent photo is of a typical bisexual
> aroid`s spadix, in this
> > case the species is Philodendron sagittifolium.
> > The lower yellowish section is the zone of female
> flowers, they were hidden
> > within the globular lower portion or chamber/tube of
> the spathe, and would
> > have been seen to be wet and
> ''sticky'' earlier on when female anthesis
> was
> > in progress.   They will dry and turn brown shortly.
> > It is not really visible, but just above this female
> zone is a shorter zone
> > of sterile male flowers, they are thought to be the
> source of the scent
> > production.   This shorter zone is the point at which
> the spathe is
> > constricted and so closely
> ''embraces'' the spadix.
> > Above this is the resin covered and stained male
> section of flowers
> > extending upwards to the tip of the spadix.  In this
> case the spadix is said
> > to be fertile to the tip, but in some Philodendrons
> and in some other
> > bisexual aroids there is a sterile area of male
> flowers near the tip, also
> > thought to be involved in scent production.
> > At male anthesis the fertile portion would be seen to
> be covered in pollen
> > extruded by the male flowers, this pollen under
> natural conditions in the
> > jungle would adhere to the emerging beetles glued to
> their shiny surfaces by
> > the resin seen as a reddish stain on this portion of
> the spadix.
> > I hope that this is of help in understanding the
> pollination mechanism of
> > some aroids.
> > Thanks for sharing with all of us, Steve.
> > Good Growing,
> >
> > Julius
> > >
> > > Julius asked this morning that I cut the spathe
> away.  Here is the photo
> > of the exposed interior.  I would like for him to
> explain what you are
> > seeing.  I've read this material several times but
> do not feel I am
> > proficient or qualified in making an explanation.  I
> intentionally left the
> > photo oversized so you could scroll up and down to
> better examine the
> > subject.
> > >
> > > Take it away Julius!
> > >
> > > Steve Lucas
> > > www.ExoticRainforest.com

> <http://www.exoticrainforest.com/>

> > _______________________________________________
> > Aroid-L mailing list
> > Aroid-L@www.gizmoworks.com
> > http://www.gizmoworks.com/mailman/listinfo/aroid-l
> >
>
>
>
> --
> Alex Popovkin
> -12.01783 -38.04863

> http://www.flickr.com/photos/plants_of_russian_in_brazil/_______________________________________________

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