20S BRITISH SEA-WEEDS. [BkoclosjoerineiB. 



and Dr. Cocks. The finest specimen of it we have seen was 

 from. Mrs. Gulson, Exmouth. Since the former edition was 

 pubhshed, it has been found in Scotland by D. L., jun., in 

 Arran, and about the same time by my daughter, ^Irs. R. M. 

 Stark, at Belhaven, near Dunbar. 



2. DuDRESNAiA DiVARiCATA, J. Agar (Ik. 



Hab. On stones and shells, not uncommon. Summer. 



It is much branched; the colour pale red, or reddish 

 brown ; the substance tender and gelatinous. ]\Irs. Griffiths 

 says, " The structure is very remarkable ; the frond appears 

 to be made up of tufts of fibres, radiating from a centre ; 

 each tuft, when separated in water under a glass, resembling 

 a double aster, or sea-anemone. In the centre of the petal- 

 like fibres are masses of pui'plish grains.'' 



This species has been found in England and Wales by 

 Mrs. Griffiths, Miss Warren, Mr. Ealfs ; in Ireland by Miss 

 Gower, Professor Harvey, Mr. W. Thompson, Mr. M'Calla; 

 in Scotland by Mr. Brodie, Capt. Carmichael, Rev. Mr. 

 Pollexfen ; it has been found also at Saltcoats, and in the 

 island of Arran. I have had specimens of it from France, 

 from Jersey, and from Ireland, and I have seen several 

 figures of it ; but none that equalled in beauty the speci- 

 mens that were got in Arran, which are firmer in substance. 



