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    <title>DigitalNatura.Org - Usnea subcornuta</title>
    <link>http://www.digitalnatura.org/details.php?image_id=5270</link>
    <description><![CDATA[Picture taken on the 10th March 2007 near Corredor Sanctuary, Llinars del Vallés, Barcelona, on Quercus suber bark.

It is a very rare lichen. It has only been mentioned by Dr. Gomez Bolea from Alt Camp and Montseny area and by Drs. Barreno &amp; Fos at Ribatejo , Portugal. I have found it with Parmelia hypoleucina as in Portugal, according to S. Fos these.
It seems a temperate lichen folowing Clauzade-Ozenda.

Corticolous, small lichen, erect (4-6 cms), cylindrical filamentous thallus, very divergent basal branches, dense, grey-green, growing in tuft, almost no fibrils, scarce small papillae, granulous soralia.
It is easy to distinguish by the red spots on the thallus.

Med. K+ yellow, red after, P+

stictic, menegaziacic and lobaric acids

Very rare or not well-known

Armand Tomás Vidal

Nikon Coolpix 4.500

Autoeye, Ph, HTML Editor]]></description>
    <pubDate>Mon, 04 May 2026 09:24:58 GMT</pubDate>
      <image>
      <url>http://www.digitalnatura.org/data/thumbnails/30/Subcae_copia.jpg</url>
      <title>Usnea subcornuta</title>
      <link>http://www.digitalnatura.org/details.php?image_id=5270</link>
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    <item>
      <title>Preciosa</title>
      <link>http://www.digitalnatura.org/details.php?image_id=5270#comment6378</link>
      <pubDate>Mon, 12 Mar 2007 06:54:28 GMT</pubDate>
      <description><![CDATA[Composició impactant i curulla de tonalitats de colors. Felicitats per la captura.

Molt interessant l'explicació  i excitant el fet de trobar especímens molt rars i no citats, anteriorment, en zones determinades.]]></description>
          <category domain="http://www.digitalnatura.org/details.php?image_id=5270">DigitalNatura.Org - Usnea subcornuta</category>
              <author><![CDATA[fbaldris@sigmascorpii.com (Francesc Baldrís)]]></author>
              <guid isPermaLink="false">http://www.digitalnatura.org/details.php?image_id=5270#comment6378</guid>
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