Might it be a sporocarp from a Marsileaceae species (Pilularia for example)?
 
Kind regards
Wouter
----- Original Message -----
From: [log in to unmask] href="mailto:[log in to unmask]">joao tereso
To: [log in to unmask] href="mailto:[log in to unmask]">[log in to unmask]
Sent: Thursday, October 13, 2011 12:16 PM
Subject: Re: Help_identifications

Yes, it has a scar, a "triletscar" is probably a good definition.

The upper seed has a fine reticulate but the seed from the second photo has a more coarse reticulate, with some volume.

2011/10/13 BIAX Consult <[log in to unmask]>
I mean apex
----- Original Message -----
From: [log in to unmask] href="mailto:[log in to unmask]" target=_blank>BIAX Consult
To: [log in to unmask] href="mailto:[log in to unmask]" target=_blank>[log in to unmask]
Sent: Thursday, October 13, 2011 12:05 PM
Subject: Re: Help_identifications

The picture is a bit unclear, but does it have some sort of a "trilete scar" on the base?
----- Original Message -----
From: [log in to unmask] href="mailto:[log in to unmask]" target=_blank>joao tereso
To: [log in to unmask] href="mailto:[log in to unmask]" target=_blank>[log in to unmask]
Sent: Friday, October 07, 2011 7:20 PM
Subject: Help_identifications

Hello to all

I wonder if any one could help me with some problematic material. Please see the photos in the attachments.

The scale marks 1mm.

Thanks

João Tereso

--
João Pedro Vicente Tereso

http://sites.google.com/site/joaopedrotereso/

http://arqueociencias.blogspot.com/

CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos/Research Center In Biodiversity and Genetic Resources
Faculdade de Ciências - Universidade do Porto/Faculty of Sciences - University of Porto



--
João Pedro Vicente Tereso

http://sites.google.com/site/joaopedrotereso/

http://arqueociencias.blogspot.com/

CIBIO - Centro de Investigação em Biodiversidade e Recursos Genéticos/Research Center In Biodiversity and Genetic Resources
Faculdade de Ciências - Universidade do Porto/Faculty of Sciences - University of Porto