8 DR. G. DICKIE ON THE ALQM FOUND 



Desmidie^:. 



Closterium lunula, Mutter. 



In a stream of fresh water, Discovery Bay 



ElYULARIACE^. 

 ZoNOTRlCHIA, Sp. 



Probably near Z.jluviatilis, Ktz. I have only seen a drawing 

 of this by Dr. Moss, who describes it as " forming firm gelatinous 

 bosses on pebbles in running water, the close pointed tubes of 

 brownish endochrome branch, and, passing out through a mucous 

 mass, end in tapering colourless tubules. " In streams from a 



W 



OsCILLARIACE^l. 





USCILLARIA TENUIS, Ag tJ var. SORDIDA, Ktz. 



Certainly nearly allied, if not distinct. Fresh water, 82° 27 f N. 



Hypheothrix coriacea, Ktz. 

 Walrus Island, 79° 15' N. 



H. VULPINA, KtZ. 



Marshy spots on land, 82° 27' N. 

 H. obscura, n. sp. ? 



Strato pallido, csespitoso, trichomatibus undulatis, vaginis hyalinis diam. 

 ==•0004, articulis obscuris vel obsoletis. 



Dried-up pool, Distant Cape, Discovery Bay. 



Chthonoblastus, sp. 



A few fragments among Nostoc, on shores of Discovery Bay. 

 The filaments dull green, ='0002 inch in diameter, about twelve 

 in one sheath, the latter = 006 of an inch. 



Tolypothrix glacialis, n. sp. ? 



Caespitosa, sordide fuscescens, trichomatibus rigidis, obscure avticulatis, 

 vaginis sublamellosis, diam. ='0006. 



Nostoc. Edge of Glacier- 



300 





NoSTOCHINEiE. 



Nostoc commune, Vctucher. 



In several localities and in various stages. Prevoost Island, 



