Lichen Flora of the Malham Tarn Area
Field Studies, 10, (2001) 57 - 92 LICHEN FLORA OF THE MALHAM TARN AREA M. R. D. SEAWARD Department of Environmental Science, University of Bradford, Bradford BD7 1DP AND A. PENTECOST Division of Life Sciences, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 8WA ABSTRACT A checklist of lichens, lichenicolous fungi and associated fungi recorded from an area within 5 km of the Malham Tarn Field Centre, Yorkshire is accompanied by background information on the ecology and the history of recording there. In all, 346 taxa (including Lecidea obluridata Nyl., new to Britain) have been recorded from the area; 48 are based on old records, most of which are presumed extinct, but some are questionable in the absence of supporting herbarium material. COLLECTORS The earliest lichen records from Malham are attributable to Richard Richardson (1663- 1741) of North Bierley, the first Yorkshireman to collect lichens; his localised material, used by Johann Jacob Dillenius (1684-1747) for his revision of Ray's Synopsis (1724) and his own Historia Muscorum (1742), is to be found in the Dillenian and Sherardian Herbaria at Oxford University (OXF). Other botanists contributing to our knowledge of Malham lichens in the 18th and 19th centuries include John G. Baker (1834-1920), William Borrer (1781-1862), Benjamin Carrington (1827-1893), Samuel Hailstone (1768-1851), Thomas Hebden (1849-1931), William Hudson (1734-1793), Frederic A. Lees (1847-1921), John Nowell (1802-1867), Abraham Shackleton (1830-1916), Abraham Stansfield (1802-1880), William West (1848- 1914) and John Windsor (1787-1868). Hailstone's Malham records appear in Whitaker (1805), but many are unlocalised, being expressed as occurring in 'the Craven area'.
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