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    <title>DigitalNatura.Org - Porpidia speirea</title>
    <link>http://digitalnatura.org/details.php?image_id=7637</link>
    <description><![CDATA[Picture taken on the 14th November 2007 at the Barcelona University mushroom and Lichens Exposition.

This lichen is not common in Catalonia. It has been mentioned in the Littoral Range of mountains.

Barbero,M.M. (1998) Estudio florístico y quimiotaxónómico de los líquenes silicícolas del Maresme. Tesis Doctoral. Universidad de Barcelona.

Crustose thallus, cracked, white to grey, chalky. Small apothecia. Spot reactions negative. Only medulla I+ violet.

Armand Tomás Vidal

Nikon Coolpix 4.500

Autoeye, PH, HTLM Editor]]></description>
    <pubDate>Wed, 15 Apr 2026 08:58:34 GMT</pubDate>
      <image>
      <url>http://digitalnatura.org/data/thumbnails/30/SPEIRae_copia.jpg</url>
      <title>Porpidia speirea</title>
      <link>http://digitalnatura.org/details.php?image_id=7637</link>
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    <item>
      <title>Molt bona</title>
      <link>http://digitalnatura.org/details.php?image_id=7637#comment9701</link>
      <pubDate>Fri, 23 Nov 2007 06:29:03 GMT</pubDate>
      <description><![CDATA[Molt bon macro i molt interessant l'explicació. Felicitats.]]></description>
          <category domain="http://digitalnatura.org/details.php?image_id=7637">DigitalNatura.Org - Porpidia speirea</category>
              <author><![CDATA[fbaldris@sigmascorpii.com (Francesc Baldrís)]]></author>
              <guid isPermaLink="false">http://digitalnatura.org/details.php?image_id=7637#comment9701</guid>
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