EDIT

    // 1. fetch descriptions_by_featuretree but exclude the distribution feature

    $merged_tree = cdm_ws_descriptions_by_featuretree(get_profile_featureTree(), $taxon->uuid, array(UUID_DISTRIBUTION));

    // 2. find the distribution feature node

    $distribution_node =& cdm_feature_tree_find_node($merged_tree->root->childNodes, UUID_DISTRIBUTION);

    if ( $distribution_node) {

      // 3. get the distributionInfoDTO

      $query_parameters = cdm_distribution_filter_query();

      $query_parameters['part'] = array('mapUriParams');

      if(variable_get('distribution_sort', 'NO_SORT') != 'NO_SORT'){

        $query_parameters['part'][] = 'tree';

      } else {

        $query_parameters['part'][] = 'elements';

      }

      $query_parameters['omitLevels'] = array(UUID_NAMEDAREALEVEL_TDWGLEVEL_2);

      $distribution_info_dto = cdm_ws_get(CDM_WS_PORTAL_DESCRIPTION_DISTRIBUTION_INFO_FOR, $taxon->uuid, queryString($query_parameters));

      // 4. get distribution TextData is there are any

      $distribution_text_data = cdm_ws_fetch_all(CDM_WS_DESCRIPTIONELEMENT_BY_TAXON,

        array(

            'taxon' => $taxon->uuid,

            'type'=>'TextData',

            'features' => UUID_DISTRIBUTION

          )

      );

      // 5. put all disitribution data into the distribution feature node

      if($distribution_text_data || $distribution_info_dto) {

        $distribution_node->descriptionElements = array('#type' => 'DTO');

        if($distribution_text_data){

          $distribution_node->descriptionElements['TextData'] = $distribution_text_data;

        }

        if($distribution_info_dto){

          $distribution_node->descriptionElements['DistributionInfoDTO'] = $distribution_info_dto;

        }

      }

    }

  // Render the sections for each feature