20 j. H. PRICE, I. TITTLEY & W. D. RICHARDSON 



Weymouth, Nothe Pools : 



Gosse (1854, 1856), end v to autumn; 20.viii.1906, 15.vi.1908, 13. ix. 1909, 6.xii.l911, all 

 coll. A. D. Cotton (K in BM); 13.ix.1909, A. D. Cotton (NMW); 23.xi.1908, A. D. Cotton, 



(BM), e. 



A. D. Cotton, MS Field Notes (BM): 



13-22.vi.1908, small Padina; 21-27.xi.1908, Nothe pools and below, very abundant; 22.1.1909, 

 Nothe pools and rocks, old plants; 13.ix.1909, Nothe pools, some in pools and shallow water 

 below stone groynes, very abundant; 17. xi. 1909, Nothe pools rather bare, apparently no Padina; 

 ll.iv.1910, Nothe pools, Padina apparently absent; 6.xii.l911, Nothe pools, Padina apparently 

 absent. 



Weymouth, Nothe Rocks: 



Carter (1927),viii.l924 and summer 1925, fairly abundant, flourishing in sandy rock pools on 

 stiff Oxford Clay, revealed only at low water of spring tides. 



Sandsfoot Bay, near Weymouth: 



c. 1850, Merrifield in Miss Barnard collection (NWH). 



Under Sandsfoot Castle: 



Gosse (1854, 1856); 31.vii.1967, 5-10 plants on protected ledge, MTL, in probable pool at 

 lower tide states, Burrows and Da Silva; same location, undated but subsequent, W. F. Farnham. 



Ledges between Sandsfoot Castle and Byng Cliff: 



Gosse (1854, 1856). 



Portland Bay: 



24.ix.1893, E. George. 



East Fleet, SY 650773: 



3 1 . vii . 1 977, W. D. R. Narrow area with strong tidal currents ; few scattered colonies in shallow 

 (0-2 m below LW) water, on silted bottom or boulders, . 



Lyme Regis 



24.vii.1802, Lyme, E. P., '. . . Growing in immense quantity in shallow pools - when magd. 

 the seed appear distinctly as black grains, in the two lower semi-circles - their color when fresh of 

 a dirty white far less beautiful than those of Dawlish' [see Dawlish entry for details of E. P. collec- 

 tion book]; Plues(1864), no date, rock pools; Walker (1884), rock pools; 29.viii.1971, in large and 

 small pools, , Norris (1972, unpublished); 17.ix.1971, W. F. Farnham, shallow pools on ledges; 

 not dated, W. F. Farnham, shallow pools on ledges, sterile specimens (PLTH). 



Lyme Regis, SY 333914: 



29.vii.1972, W. D. R.; 9.ix.l976, , W. D. R. 



Dorset general: 



Harvey (1833); Anon. [Tregelles & Parke] (1952). 



The comparatively rich heritage of Dorset data for Padina pavonica suffers geographical 

 imprecision, especially in records from before the mid-l9th century. 'Weymouth', 'Swanage', and 

 'Lyme Regis' can often only be elucidated by making the assumption that current or recent 

 locations of populations have altered little in many years. Often enough, this is a reasonable 

 assumption; equally often, there is little foundation for it. Local substrate, configuration and wave- 

 action changes, artificially or naturally induced, have affected certain localities associated with 

 towns (e.g. Swanage; Weymouth) the importance of which has grown in the last century; precise 

 siting of older records by comparison with modern populations is in those areas not possible. 



