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    <title>DigitalNatura.Org - Collema tenax</title>
    <link>http://digitalnatura.org/details.php?image_id=7802</link>
    <description><![CDATA[Picture taken on the 6th December 2007 at Ermita San Jaume, near Sant Cristòfol, Montserrat, Barcelona, Catalonia, Spaon, on a shady place, South oriented, on the ground formed by a calcareous rock, among mosses.

Gelatineous thallus, dark greenish black, forming irregular rosettes, thick when wet. Forming evident lobes, with very numerous apothecia up to 3 mm with a red brown disc. Normally without isidia but if present with globose form.

Common in Catalonia but not upland. 

See pictures in Timdal and Nimmis vitual guides.

On the other hand, I like the illustration of Nicholson in Frank Brightman book The Oxford Book of flowerlees plants, translated by X. Llimona and published by Ed. Omega as Guía de campo de las plantas sin flores, pag. 75 illust. 6.

Armand Tomás Vidal

Nikon Coolpix 4.500

PH and HTLM Editor]]></description>
    <pubDate>Mon, 13 Apr 2026 11:08:29 GMT</pubDate>
      <image>
      <url>http://digitalnatura.org/data/thumbnails/30/tenax1_copia.jpg</url>
      <title>Collema tenax</title>
      <link>http://digitalnatura.org/details.php?image_id=7802</link>
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    <item>
      <title>Molt bones</title>
      <link>http://digitalnatura.org/details.php?image_id=7802#comment9968</link>
      <pubDate>Fri, 07 Dec 2007 12:48:45 GMT</pubDate>
      <description><![CDATA[Molt bones i interessants les 2 captures de la visió genral i de detall d'aquest líquen. Molt interessant l'explicació i les referències a les fotografies en guies virtuals d'aquest líquen.]]></description>
          <category domain="http://digitalnatura.org/details.php?image_id=7802">DigitalNatura.Org - Collema tenax</category>
              <author><![CDATA[fbaldris@sigmascorpii.com (Francesc Baldrís)]]></author>
              <guid isPermaLink="false">http://digitalnatura.org/details.php?image_id=7802#comment9968</guid>
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