294 CATALOGUE OF THE MARINE ALG^ 



On the larger Algte, and (less frequently) on rocks and stones. 

 — N. D. 



3. D. ANGUSTissiMA, Griff. Harv. Man., p. 115. Pliyc. Brit., 



t. 83. Atlas, PL XXXIIL, fig. 150. Jolmst. 



and Or., t. 42 (B). 

 On the stems of Laminaria digitata. Rare. Near Berwick. — 

 Dr. Johnston. Sunderland. — G. S. B. By most algologists, 

 and by Dr. Harvey among the number, this is considered as 

 an extreme variety of the preceding species. Mrs. Griffiths, 

 however, believed it to be permanently distinct. I have gathered 

 only one specimen, but this is very well marked; and I have 

 never met with any examples at all perplexingly intermediate in 

 character. — N. D. 



4. D. HYPOGLOSSUM, Ag. Harv. Man., p. 115. Phyc. Brit., t. 



2. Atlas, PI. XXXYIL, fig. 172. Johnst. and 

 Cr., t. 43. 



Fucus hypoglossum. E. Bot., t. 1396. 

 " Among rejectamenta on the beach near Sunderland. — Mr. J. 

 Rohson. At Hartlepool. — J. Hogg, Esq.'''' — Winch. Whitley 

 sands.— (7. .S'. i?.— N. D. 



5. D. RUSCiFOLiA, Lamour. Harv. Man., p. 115. Phyc. Brit., 



t. 26. Atlas, PI. XL., fig. 182. Johnst. and 

 Cr., t. 44. 

 Fucus ruscifolius. E. Bot., t. 1305. 

 On rocks and the stems of Laminarice. Rare. Whitley? 

 Sunderland, Seaham harbour. — G. S. B. — N. D. 



38. NITOPHYLLUM, Grcr. 



1. N. PUNCTATUM, G7'ev. Harv. Man., p. 116. Phyc. Brit., t. 

 202. Atlas, PI. XXXVIIL, fig. 173. Johnst. 

 and Cr., t. 50. 

 Fucus punctatus. E. Bot., t. 1573. 

 /3. OcELLATUM. Phyc. Brit., t. 203, fig. 1. 

 On corallines and Algie. Rather rare. Whitley and Culler- 



