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http://www.flickr.com/photos/plants_of_russian_in_brazil/sets/72157600110831842/
On Sun, Jun 8, 2008 at 11:43 AM, wrote:
>
>
>
> ________________________________
> > From: Steve at ExoticRainforest.com
> > To: aroid-l at 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
> _______________________________________________
> Aroid-L mailing list
> Aroid-L at 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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