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Re: fern cries


Hi Guys
   
  The Drynarias (e.g. D. quercifolia, D. sparsisora) have these nectaries on the underside of the fronds at the junctions of rachis and pinna as well. In warm weather you can sometimes see the drops of "nectar" glistening.
   
  Cheers
   
  Valdy
   
   
  MATT BUSBY <matt4u@btopenworld.com> wrote:
  My understanding is that common bracken (Pteridium aquilinum) has necteries at the junction of the rachis and pinna but I cannot recall a species with them on the underside of the frond. 
Matt Busby

regferns@aol.com wrote:
There are several ferns that have nectaries for ants.? Suzanne Koptur did a wonderful article on these .Ant Protection of the Nectaried Fern Polypodium plebeium in Central Mexico?? 
Suzanne Koptur, Victor Rico-Gray, Monica Palacios-Rios 
American Journal of Botany, Vol. 85, No. 5 (May, 1998), pp. 736-739
doi:10.2307/2446544

Reggie Whitehead
South Miami, FL

-----Original Message-----
From: Guertin, Darryl A. (North Houston) 
To: ferns@hort.net
Sent: Fri, 13 Jul 2007 10:37 am
Subject: RE: [ferns] fern cries



This kind of feature is normally intended to either attract bugs for
pollination, or trap them as a defensive measure, to prevent
consumption. I have never heard of a fern with this feature though?!?
Then again, I've never heard of this species either, so...

Best,

Darryl

-----Original Message-----
From: owner-ferns@hort.net [mailto:owner-ferns@hort.net] On Behalf Of
MATT BUSBY
Sent: 13 July 2007 05:39
To: ferns@hort.net
Subject: Re: [ferns] fern cries

Presumably these are glandular hairs...many plants posess glandular
hairs. I cannot think of a fern sp. at the moment but I am sure there
are some with glandular hairs.

Matt Busby

Otto Ganss wrote:
Hi all,

i noticed on my Polypodium sanctae-rosae only on the latest fronds with 
ripe spores some "tear"drops.Its a clear,sticky and gluelike fluid.
Does anybody know what it is please???


Habit
http://www.bambusarium.de/exoten/Forumbilder/rosae2.jpg

frond detail 1
http://www.bambusarium.de/exoten/Forumbilder/rosae1.jpg

detail 2
http://www.bambusarium.de/exoten/Forumbilder/rosae.jpg

regards

Otto in Germany

-- 
www.bambusarium.de

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Valdy Pierozynski 
Mobile : 07802 804882 
Email : valdypiero@yahoo.co.uk

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  • Follow-Ups:
    • RE: fern cries
      • From: "Guertin, Darryl A. \(North Houston\)" <cjlm7@allstate.com>

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