List of the St. Lawrence AlgCB, 39 



Delesseria angustisswia, Griff. P. 95. It is doubtful whether 

 this be not a very extreme variety of the preceeding. 



Delesseria i??//)oy?ossMm, Lam. P. 96. Murray Bay. Collected 

 by Miss Taylor. 



Nitophyllum punctatum, Grev. P. 104. Mingan Islands. Col- 

 lected by George Barnston, Esq. 



Nitophyllum Bomiemaisoni, Ag. Harv. Man. p. 117. Mingan 

 Islands. Collected by George Barnston, Esq. This 

 species is not in the Ner. Bor.-Am., and is new to the 

 American shores. 



Order V. — GelidiacEuE. 

 Hypnea musci/ormis, Lam. P. 123. Point des Monts. 



Order X. — Rhodymeniace^. 



Rhodymenia ^er^wsa, J. Ag. P. 147. North shore. Harvey gives 

 also the Straits of St. Juan de Fuca and Greenland. 

 Our specimens are not more than 4-6 inches long. In 

 the more northern seas this plant attains the size of from 

 1-3 feet. 



B.]iodymem?i pahnata, Grev. P. 148. Regarding this fine plant 

 the collector notes that it is " common on the south shore 

 and Murray Bay, but not a trace of it is to be found so 

 far north as St. Nicholas and Point des Monts." 



Cordylecladia irregularis, Harv. P. 156. This plant seems to be 

 very abundant on both shores of the St. Lawrence, but 

 we are somewhat doubtful as to our determination. 

 Both in structure and external appearance it approxi- 

 mates to the description of this species by Harvey. It 

 is a pretty red plant and is remarkable for the secund 

 character of its ultimate ramuli. 



Order XL — Cryptonemiace^. 



Phyllophora Brodlcei, J. Ag. P. 164. In rock pools near low 



water mark, Murray Bay. 

 Phyllophora mem?>?'a?ii/b/ia, J. Ag. P. 165. Murray Bay. 



Cysiochnium purpurascejis,Kutz. P. 170. Collected at Gasp^ by 

 Mr. Bell, of the Canada Geological Survey. Found 

 also at Murray Bay. This plant is readily recognized 

 by the nodose swellings in the ramuli. " It is common 



