120 PAPERS, ETC. 



and at Minehead it vegetates on wood-work, but tliough 

 raore fully colored tlian tlie Blue Anchor plants, it is never 

 move tlian an inch high. C. Eothii, I have not seen else- 

 where than at Clevedon ; excepting once, when I found it 

 in veiy small quantities on wood-work, eastvvard of the 

 Warren beach, at Minehead, We now come to the con- 

 cluding serles, the Gx*ass-green, or Chlorosperms. It was 

 not untU October of last year (1853) that I ever observed 

 Bryopsis plumosa on this coast. I then gathered three 

 plants of it in a deep pool on Minehead beach. It belonga 

 to the tribe Siphonacese. Of the Marine ConfervaceEe, we 

 have Cladophora rupestris, common all along the coast, and 

 Cladophora lastevirens grows in pools on the Blue Anchor 

 and Minehead beaches. Conferva serea, and Conferva 

 melagonium, grow on ISIinehead beach ; the former in pools 

 near high-water mark, and the latter in those close to low- 

 water mark. Enteromorpha intestinalis occurs at the 

 mouth of the Hone river, and at Bossington ; I have not 

 seen it in the tide pools. E. compressa is extremely com- 

 mon, covering the stones, &c., near high-water mark, all 

 along, as are likewise Ulva latissima and Porphyra laciniata. 

 The four latter species belong to the Ulvaceoe, the last 

 tribe calling for our remarks in this paper. Having given 

 an account of the species actually found growing on the 

 Somerset coast, I shall conclude with a brief notice of 

 those alg£e, mostly inhabitants of deep water, which come 

 ashore in such a state of preservation as to manifest that 

 their habitats, if not exactly on the coast, cannot be at 

 any great dlstance off. Laminaria digitata and bulbosa 

 are thrown upon Minehead beach after westerly gales. I 

 suspect both kinds grow in deep water off Porlock. 

 Haliseris polypodloides, Dictyota dichotoma, Taonia ato- 

 maria, and Sphacelaria filicina are all drifted ashore during 



