<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <TITLE>Degelia ligulata (images of British lichens)</TITLE> <META NAME="description" CONTENT="Photographs of Degelia ligulata (lichen)"> <META NAME="keywords" CONTENT="image, images, photograph, lichen, Degelia"> <META NAME="Author" CONTENT="Alan J. Silverside"> </HEAD> <BODY bgcolor="#000000" background="Icback_dr.jpg" TEXT="#000000" LINK="#3672a4" VLINK="#3672a4"> &nbsp; <center><table border=0 bgcolor="#ffffff" width=1000> <tr><td> <a href="Degelia_cyanoloma.html" target="_top"><img src="previous.gif" border=0 alt="Previous page" align=left></a> <a href="Degelia_plumbea.html" target="_top"><img src="next.gif" border=0 alt="Next page" align=right></a> <blockquote> <h5 align=center><font color="#b22222" face="arial">&nbsp;<br>lastdragon.org</font></h5> <h2 align=center><font color="#b22222">Images of British Lichens</font></h2> <hr width="50%"> <p><br></p> <center> <p><font size=5><b>Degelia ligulata</b></font><font size=4> P.M.J&oslash;rg. &amp; P.James</font></p> <p><br></p> <table width=900 border=0> <tr><td><div align=justify><font face="arial" size=2>Thallus yellow-grey to blue-grey, presumably dark blue when wet, marked above with longitudinal striations, lobes very slightly undulate-ridged, felted blue-black beneath and at the margins, lobe margins lacking isidia but with numerous, flat phyllidia (detaching lobe fragments); apothecia very rare, said to be red-brown to dark brown or blackish. Very local and scarce in western Britain and Ireland, in sheltered places in coastal rock crevices and on tree-bases, though no doubt under-recorded on inaccessible cliff-faces. Probably, as suggested by James & Purvis (in Purvis <i>et al.</i>, 1992), dependent on onshore sea mists. [In some descriptions, the phyllidia are termed &quot;schizidia&quot;, but this appears incorrect.]<br>British Red Data Book species: vulnerable.</p> <p>Refs: Smith <i>et al</i>. (2009), 370; Purvis <i>et al.</i> (1992), 231; Whelan (2011), 91 (photo); Lichen Atlas of the British Isles 4: 1597 (1999).</p> <p><i><a href="Degelia_atlantica.html">D.&nbsp;atlantica</a></i> is similar but instead of flat, scale-like phyllidia, it has rounded or knobbly isidia along the lobe margins. The two species can occur together, but <i>D.&nbsp;atlantica</i> is by far the more common species.</p> <p>FGBI: <a href="http://fungi.myspecies.info/all-fungi/degelia-ligulata" target="_blank">http://fungi.myspecies.info/all-fungi/degelia-ligulata</a></font></div></td></tr> </table> </center></blockquote><center> <table> <tr><td align=center><img src="Degelia_ligulata_IMG_3238.jpg" border=1 vspace=5 alt="Degelia ligulata"></td></tr> <tr><td align=center><img src="Degelia_ligulata_IMG_3252.jpg" border=1 vspace=5 alt="Degelia ligulata"></td></tr> <tr><td align=center><img src="Degelia_ligulata_IMG_3252a.jpg" border=1 vspace=5 alt="Degelia ligulata, enlarged view showing schizidia"></td></tr> <tr><td align=center><font face="arial" size=2>In sheltered cleft in seacliff, Isle of Muck, June 2012 (BLS meeting), lowest photograph showing a closer view of the marginal phyllidia.</font></td></tr> </table> </center><blockquote><center> <p><br></p> <table border=0> <tr><td><a href="Degelia_cyanoloma.html" target="_top"><img src="baru6.gif" border=0 alt="Previous page"></a></td> <td width="50">&nbsp;</td> <td><a href="Degelia_plumbea.html" target="_top"><img src="baru8.gif" border=0 alt="Next page"></a></td></tr> </table> </center> <p><br></p> <p><hr></p> <center><font face="Arial" size=2> <p><b><a href="index.html" target="_top">Lichens HOME PAGE</a> | <a href="indexP.html" target="_top">Index of Species</a> | <a href="http://www.lastdragon.org/conditions.html" target="_top">Conditions of Use and e-mail contact</a> | <a href="references.html" target="_top">References</a> | <a href="http://www.lastdragon.org/home.html" target="_top">Site Home Page</a></b></p> </font></center> <p><br></p> <font face="Arial" size=2> <p>&copy; A.J. Silverside<br> Uploaded July 2012, updated January 2016</p> </font> </blockquote> </td></tr> </table></center> </BODY> </HTML>