304 CATALOGUE OF THE MARINE ALG.E 



66. PTILOTA, Ag. 



1. P. PLUMosA, Ag. Harv. Man., p. 159. Phyc. Brit., t. 



80. Atlas, PI. XLIX., fig. 223. Jolinst. and 

 Cr., t. 110. 

 Fucus plumosus. E. Bot., t. 1308. 

 On the stems of Laminari^e, Common. — N. D. 



2. P. ELEGANs, Kutz. Jolmst. and Cr., t. 111. 



P. sericea. Harv. Man., p. 160. Pliyc. Brit., t. 

 191. Atlas, PL XLIX., fig. 222. 

 On rocks between tide marks. Common. This species may 

 frequently be found in sheltered tidal pools, but most abundantly 

 on the faces of wave-washed perpendicular rocks, which are left 

 dry on the recess of the tide. It is never met with on the stems 

 of Laminari^e. — N. D. 



67. GRIFFITHSIA, Ag. 



1. G. EQUisETiFOLiA, Ag. Harv. Man., p. 167. Phyc. Brit,, 



t. 67. Atlas, PI. LIIL, fig. 244. Johnst. and 

 Cr., t. 112. 

 Conf. equisetifolia. E. Bot., t. 1479. 

 '* On the beach at Hartlepool." — Winch. — D. 



2. G. coRALLiNA, Ag. Harv. Man., p. 168. Phyc, Brit., t. 



214. Atlas, PI. LV., fig. 252. Johnst. and 

 Cr., t. 113. 

 Conf. coralUna. E. Bot., t. 1815. 

 " On the coast near Hartley, and at Newbiggen. In Man- 

 haven."— M/ic/i.—N. D. 



3. G. SETACEA, Ag. Harv. Man., p. 169. Pliyc. Brit., t. 



184. Atlas, PI. Ly.,fig. 253. Jolmst. and Cr., 

 t. 115. 

 Conf. setacea. E. Bot , t. 1689. 



