W, WESt AND G. S. West: ALGA-J^LORA of YORksHlRE. 21^ 



1028. Melosira varians Ag. 



S.W. — 'Common' in the millstone grit districts. 'Abundant.' 

 Roche Abbey (M. H. Stiles ; J. N. Coombe). Fixby. Heaton. 

 Askern and Hatfield districts ; Doncaster (!) town water; Firsby 

 reservoirs ; Rossington (M. H. Stiles). Farnley. 



Mid W.— x^rthington. Leathley. Baildon. Bolton Woods. 

 Otley. Staveley Dam, near Knaresborough. Harrogate ; 

 Ripley (G. Norman). 



N.W. — Jervaulx Abbey. Masham. 



N.E. — ' Frequent.' Scalby Beck. Carlton Bank. 



S.E. — Beverley. Newsholme. Haltenprice (pure and with 

 s[)orangia) ; Spring Ditch ; Cottingham ; Wawne ; Reservoir 

 W^aterworks, Hull ; Hornsea Peat Deposit (G. Norman). 



1029. Melosira distans KUtz. 



Van nivalis (W. Sm.) V.H. [Syn. M. nivalis W. Sm.]. 

 Mid W.— Gilstead. 

 N.E.— Lockton. 



1030. Melosira Arenulata Kiitz. 



[Syn. AI. orichalcea W. Sm.]. 

 S.W. — Very rare, in a boggy puddle, Thorne Moor (G. Nor- 

 man). Plentiful near Marsden. 

 N.W.— Rokeby. 



1031. Melosira arenaria Moore. 

 S.W. — Roche Abbey (M. H. Stiles). 



Mid W. — Baildon. Gordale. Holden Gill, near Keighley. 

 Kildwick. 



N.E. — Near Scarborough. Rievaulx Abbey. 



S.E. — Newbald ; Hornsea Peat Deposit ; Hull (G. Norman). 



1032. Melosira granulata (Ehrenb.) Ralfs. 



[Syn. Orthosira punctata W. Sm.]. 

 S.W.— Chellow Dean. 



S.E. — ^Hornsea Peat Deposit ; in brackish ditch, Stoneferry 

 to Sutlon (G. Norman). 



1033. Melosira Roesiana Rabenh. 



[Syn. Orthosira spinosa W. Sm.]. 



