A lichen - Dermatocarpon luridum - geograph.org.uk - 1054164

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Summary.mw-parser-output table.commons-file-information-table,.mw-parser-output.fileinfotpl-type-information{border:1px solid #a2a9b1;background-color:#f8f9fa;padding:5px;font-size:95%;border-spacing:2px;box-sizing:border-box;margin:0;width:100%}.mw-parser-output table.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{vertical-align:top}.mw-parser-output table.commons-file-information-table>tbody>tr>td,.mw-parser-output table.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:4px}.mw-parser-output.fileinfo-paramfield{background:#ccf;text-align:right;padding-right:0.4em;width:15%;font-weight:bold}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{border-top:0;padding-top:0;margin-top:-8px}@media only screen and (max-width:719px){.mw-parser-output table.commons-file-information-table,.mw-parser-output.commons-file-information-table.fileinfotpl-type-information{border-spacing:0;padding:0;word-break:break-word;width:100%!important}.mw-parser-output.commons-file-information-table>tbody,.mw-parser-output.fileinfotpl-type-information>tbody{display:block}.mw-parser-output.commons-file-information-table>tbody>tr>td,.mw-parser-output.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:0.2em 0.4em;text-align:left;text-align:start}.mw-parser-output.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{display:flex;flex-direction:column}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{margin-top:-1px}.mw-parser-output.fileinfo-paramfield{box-sizing:border-box;flex:1 0 100%;width:100%}} Description: English: A lichen - Dermatocarpon luridum. This rather inconspicuous lichen was growing on a rock in the upper part of a beach (right next to the location of another species: 1054150). Dermatocarpon luridum is the charred-looking species that runs across the middle of the image from left to right. When dry, as is the case here, it is light brown; it appears greenish when wet. One interesting feature is the pattern of dots on its surface (best seen just above and to the right of the centre of the image). Through a hand-lens, these dots can be seen to be arranged in a regular pattern; they are the openings of spore-producing chambers called perithecia. The very distinctive pattern of dots on the surface is well illustrated in a line drawing at: http://www.fs.fed.us/r6/aq/lichen/drawings.htm#D (click on the species name Dermatocarpon luridum in the list to see the drawing). Date: 21 November 2008. Source: From geograph.org.uk. Author: Lairich Rig. Attribution(required by the license)InfoFieldLairich Rig / A lichen - Dermatocarpon luridum / CC BY-SA 2.0. InfoFieldLairich Rig / A lichen - Dermatocarpon luridum. Camera location55° 56′ 51.4″ N, 4° 36′ 50″ W View all coordinates using: OpenStreetMap 55.947600; -4.614000. Object location55° 56′ 51.4″ N, 4° 36′ 50″ W View all coordinates using: OpenStreetMap 55.947600; -4.614000.