EDIT

      '#type' => 'fieldset',

      '#title' => t('Synonymy'),

      '#collapsible' => TRUE,

      '#description' => t('This section covers the settings related to the taxon <b>synonymy</b> tab.'),

  );

  $collapsed = false;

  $form = array();

  //--------- TABBED TAXON -------//

    '#type' => 'fieldset',

      '#title' => t('Taxon tabs'),

      '#collapsible' => TRUE,

             General, Synonymy, Images and Specimens. If the taxon has no information for any of the tabs/sections such tab will be not displayed.'),

  );

    '#type' => 'checkbox',

    '#title' => t('Tabbed taxon page'),

    '#default_value' => variable_get('cdm_dataportal_taxonpage_tabs', 1),

                            If not the taxon data is renderized as a long single page without tabs.</p>')

  );

      '#type'          => 'select',

      '#title'         => t('Default tab to display'),

      '#default_value' => variable_get('cdm_dataportal_detault_tab', 0),

              to be renderized will be the synonymy of the accepted taxon and not the above selected tab.'),

  );

  // ---- PROFILE PICTURE ----//

  $form['taxon_profile']['picture'] = array(

      '#description'   => t('Show the profil pictures current taxon\'s children.')

  );

  // ---- FEATURE TREE ---- //

  $form['taxon_profile']['taxon_profile'] = array(

  '#type' => 'fieldset',

/* ====== SYNONYMY ====== */

      '#type' => 'fieldset',

      '#collapsible' => TRUE,

      '#description' => t('This section covers the settings related to the taxon <b>synonymy</b> tab.'),

  );

    '#type' => 'checkbox',

    '#title' => t('Show accepted taxon on top of the synonymy'),

    '#default_value' => variable_get('cdm_dataportal_nomref_in_title', CDM_DATAPORTAL_NOMREF_IN_TITLE),

                        with the full nomenclatural reference (depending on the currently chosen theme).')

  );

    '#type' => 'checkbox',

    '#title' => t('Display <em>is accepted for ...</em> on taxon pages when coming from a synonym link.'),

    '#default_value' => variable_get('cdm_dataportal_display_is_accepted_for', CDM_DATAPORTAL_DISPLAY_IS_ACCEPTED_FOR),

    '#description' => t('Select the name relationships you want to show for the accepted taxa.'),

  );

      /*

       $form['synonymy'][CDM_DATAPORTAL_DISPLAY_NAME_RELATIONSHIPS] = array(

       '#type' => 'checkbox',

       '#description' => t('Check this if you want the synonymy list to show all the name relationships of accepted taxa.')

       );

     */

    '#type' => 'checkbox',

    '#title' => t('Show taxon relations of accepted taxa on taxon page'),

    '#default_value' => variable_get(CDM_DATAPORTAL_DISPLAY_TAXON_RELATIONSHIPS, CDM_DATAPORTAL_DISPLAY_TAXON_RELATIONSHIPS_DEFAULT),

  );

  // ====== SPECIMENS ====== //

      '#type' => 'fieldset',

      '#collapsible' => TRUE,

      '#description' => t('This section covers the settings related to the taxon <b>specimens</b> tab.'),

  );

  $form_name = CDM_DATAPORTAL_SPECIMEN_GALLERY_NAME;

  $form_description = 'Specimens may have media which is displayed at the Specimen tab/section as a gallery.

   It is possible to configure the thumbnails gallery here, however for configuring how a single media should

   be displayed please go to <a href="./?q=admin/settings/cdm_dataportal/layout/media">Layout -&gt; Media</a></p>';

    cdm_dataportal_create_gallery_settings_form($form_name, $form_title, FALSE, $form_description);

  // --- MEDIA GALLERY ---- //

  $form_name = CDM_DATAPORTAL_TAXON_MEDIA_GALLERY_NAME_TAB;

  $form_description = '<p>This section covers the settings related to the taxon <strong>media</strong> tab.

   Taxa may have media (usually images) and they are as thumbnails displayed. It is possible to configure

   the thumbnails gallery here, however for configuring how a single media should be displayed please go to

   <a href="./?q=admin/settings/cdm_dataportal/layout/media">Layout -&gt; Media</a></p>

   <p><strong>Note:</strong> These settings are only taken into account when the standard

   gallery viewer is selected at <a href="./?q=admin/settings/cdm_dataportal/layout/media">Layout -&gt; Media</a>.</p>';

  return system_settings_form($form);

    '#type' => 'fieldset',

    '#title' => t('Taxa Search'),

    '#collapsible' => TRUE,

    '#description' => t('<p>The data portal allows the users to perform searchs.</p><p>To perform searchs

         the block <em>CDM Taxon Search</em> should be enabled and visible for users

         where they can write the text to be searched. You can find Drupal block configuration