286 CATALOGUE OF THE MARINE ALGM 



the rejectamenta of the sea at Manhaven. — E. Foster. Near 

 Berwick. — Dr. Johnston. Washed up near Sunderland. — E. 

 Backhouse. Peculiarly a northern species. I have seen only a 

 few battered specimens from the Durham coast, but at Holy 

 Island it grows to a large size, and is tolerably abundant. 

 When well grown it is among the most beautiful of our native 

 Algge. — N. D. 



28. EHODOMELA, A^. 



1. R. LYCOPODioiDEs, Ag. Harv. Man., p. 78. Phyc. Brit., t. 



50. Atlas, PI. XXIIL, fig. 100. Johnst. and 

 Cr., t. 3. 

 Fncus lycopoclioides. E. Bot., t. 1163. 

 On the stems of Laminaria digitata, &c. Not common. This 

 species is said by authors to grow exclusively on the stems of 

 Laminaria. I have, however, found it abundantly on the 

 rocks at Newbiggen and Holy Island. — N. D. 



2. R. SUBFUSCA, Ag. Harv. Man., p. 79. Phyc. Brit., t. 264. 



Atlas, PI. XXIV., fig. 103. Johnst. and Cr., t. 2. 

 Fucus subfuscus. E. Bot., t. 1164. 

 On rocks and Algse in the sea. Very common. A very 

 variable plant, and in some of its states by no means easy to 

 distinguish from the foregoing species. — N. D. 



29. RYTIPHLiEA, Ag. 



1. R. THUYOiDES, Harv. Harv. Man., p. 81. Phyc. Brit., 

 t. 221. Atlas, PL XXIIL, fig. 101. Johnst. 

 and Cr., t. 10. 

 I gathered a few small specimens of this plant somewhere near 

 St. Mary's Island, in February, 1860; but I have been unable 

 hitherto to rediscover the precise locality, though I have re- 

 peatedly sought it. There is no record, I believe, of any other 

 habitat on the east coast of England. — N. 



