Alnas incana Willd. in Co. Tyrone

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<ul><li><p>Alnas incana Willd. in Co. TyroneAuthor(s): Thomas GreerSource: The Irish Naturalists' Journal, Vol. 6, No. 8 (Mar., 1937), p. 195Published by: Irish Naturalists' Journal Ltd.Stable URL: http://www.jstor.org/stable/25532687 .Accessed: 15/06/2014 01:43</p><p>Your use of the JSTOR archive indicates your acceptance of the Terms &amp; Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp</p><p> .JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact support@jstor.org.</p><p> .</p><p>Irish Naturalists' Journal Ltd. is collaborating with JSTOR to digitize, preserve and extend access to The IrishNaturalists' Journal.</p><p>http://www.jstor.org </p><p>This content downloaded from 188.72.126.55 on Sun, 15 Jun 2014 01:43:16 AMAll use subject to JSTOR Terms and Conditions</p><p>http://www.jstor.org/action/showPublisher?publisherCode=injhttp://www.jstor.org/stable/25532687?origin=JSTOR-pdfhttp://www.jstor.org/page/info/about/policies/terms.jsphttp://www.jstor.org/page/info/about/policies/terms.jsp</p></li><li><p>March, 1937.] The Irish Naturalists' Journal. 195 </p><p>Another small area of salt-marsh is recorded near the cause </p><p>way which joins Mahee Island and Reagh Island. Here there was typical Glycerietum with hummocks of Glyccria maritima, and the other halophytes noted were Limonium humih (L.H.), Aster Tripolium (A.T.), Salicornia herbacea (SAL) and Suacda maritima (D.M.); the last two spread to the muddy shingle beyond the Pelvetia zone. Gelatinous clumps of the Blue-green alga, </p><p>Rivularia atra (Biv), were abundant on the surface of the marsh. </p><p>The algal vegetation of Mahee Island was not examined in detail, but at various points where records were made the zonation was similar to that of Skettrick Island which was mapped in detail. </p><p>REFERENCES. </p><p>(1) Lynn, M. J.? I.X.J., vol. VI, no. 5, 1936. </p><p>(2) Clapham, M.?I.NJ., vol. Ill, no. 3, 1930. </p><p>(3) Lynn, M. J.?7.A\/.. vol. V, no. 11, 1935. </p><p>(4) Batters, E. A. L.~" A Catalogue of British Marine Algae." Journal </p><p>of Botany, vol. 40, 1902. </p><p>(5) Lynn, M. J.?I.N.J., vol. V, no. 8, 1935. </p><p>Department of Botany, Queen's University, Belfast. Feb., 1936. </p><p>BOTANICAL NOTES. </p><p>ALNAS INCANA WILLD. IN CO. TYRONE. </p><p>With reference to the note by Mr. A. W. Stelfox in I.N.J., vol. V, p. 308, I have observed this Alder for a number of years in this district </p></li></ul>