Might it be a sporocarp from a Marsileaceae species (Pilularia for example)? Kind regards Wouter ----- Original Message ----- From: joao tereso To: [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: BIAX Consult To: [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: joao tereso To: [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