List of the St. Lawrence Algce. 41 



Bangia /wscopwrpwrea, Lyngb. P. 54. On top and within the 

 seams of rocks near high water mark, Point des Monts. 



Enteromorpha coinpressa, Grev. P. 57. Extremely common and 

 variable. Under one or other of its many forms this 

 species is found on all parts of our American coasts. 



Enteromorpha intestinalis, Link. P. 57. In rills of fresh water 

 covered at high tide. Murray Bay. 



Enteromorpha clathrata var., erecta, Lyngb. Harv. Man. p. 214. 

 In rock pools near low water. Murray Bay. 



Enteromorpha clathrata, var., ramulosa, Grev. P. 57. Harv. 

 Man. p. 215. In rock pools. In the Ner. Bor.-Am. 

 Harvey agrees with Greville in considering E. erecta and 

 ramulosa of authors as varieties, if not also synonyms of 

 E. clathrata. 



Ulva Linza, Linn. P. 59. Common on all the shores ; easily 



known by its tapering base and linear lanceolate form. 

 TJlva latissima, Linn. P. 59. Verycommon. Form polymorphous; 



Order VI. — CoNFERVACEiE. 



Cladophora arcta Billw. P. 75. On rocks near low water mark. 



Bimouski and St, Nicholas. 

 Cladophora ^raciZis, Griff. P. 81. Murray Bay. 

 Cladophora Icetevirens Dillw. P. 82. In rock pools at low tide. 



Metis. 



Chaetomorpha melagonium, Web. & Mohr. P. 85. In rook pools 

 near low water mark, North shore. This plant was for- 

 merly called Conferva melagonium, but Harv. in the 

 latest of his publications thus designates the genus. 



Cha3tomorpha longiarticulata, Harv. P. 86. Parasitical on 

 Halosaccion. North shore. 



Hormotrichum Younganum, Dillw. P. 89. From the iron bar of 

 a buoy, Bimouski. The plants under this genus have 

 hitherto been placed either in Conferva or Lynghya. 



Hormotrichum CarmichwUi, Harv. P. 90. On top of stones near 

 high water mark, Murray Bay. 



Rhizoclonium rijmrium, Both. P. 92. In seams of rocks, Murray 

 Bay. Also found in Greenland. 



Order IX. — OSCILLATORIACE^. 



Lyngbya/errz/^{?iea, Ag. P. 102. On top of rooks near low water 

 mark, Bic. 



