310 CATALOGUE OF THE MARINE ALG^ 



8. C. FRACTA, Kutz. Harv. Man., p. 206. Phyc. Brit., t. 294. 

 Atlas, PI. LXVIL, %. 315. Jolinst. and Cr., 

 vol. iv., p. 71. E. Bot.,1 2338. 

 In the stream at Seaton Sluice, in brackish water; and in pools 



on the coast between Sunderland an'd Ryhope. — N. D. 



72. RHIZOCLONIUM, Kutz. 

 1. R. RiPARiUM, Kiitz. Harv. Man., p. 206. Phyc. Brit., t. 

 238. Atlas, PL LXVIL, fig. 316. Johnst. and 

 Cr., vol. iv., p. 73. 

 Conf. riparia. E. Bot., t. 2100. 

 On rocks near high-water mark. Tynemouth, Sunderland, 

 &c. — Winch. Abundant about Berwick. — Dr. Johnston. At 

 Roker.— (?. S. J5.— N. D. 



73. CONFERVA, Plin. 



1. C. LiNUM, Roth. Harv. Man., p. 208. Phyc. Brit., t. 



150 (A). Atlas, PI. LXVIIL, fig. 323. E. 



Bot., t. 2363. Johnst. and Cr., vol. iv., p. 87. 

 " In ditches near Jarrow Slake. In salt marshes near Hartle- 

 pool. — J. Hogg, Esq. In salt marshes near Hartley." — Winch. — 

 N. D. 



2. C. suTORiA, Berh. Harv. Man., p. 208. Phyc. Brit., t. 



150 (B). Atlas, PI. LXXIL, fig. 336. Johnst. 



and Cr., vol. iv., p. 89. 

 Attached to stones in the bed of the stream at Seaton Sluice. 

 This seems to be rather a variety of C. Linum than a distinct 

 species, the chief differences being the somewhat longer articu- 

 lations and the smaller diameter of the filament. — N. 



3. C. TORTUOSA, Dillw. Harv. Man., p. 208. Phyc. Brit., t. 



54 (A). Atlas, PI. LXVIIL, fig. 319. E. Bot., 

 t. 2220. Johnst. and Cr., vol. iv., p. 79. 

 " In pools of salt water at the highest water mark, and on the 



margins of the Tweed within the influence of the tide." — Dr. 



Johnston. — N. 



