\v. wiist ANb G. s. West: ALCA-tLORA of Yorkshire. 217 



1028. Melosira variansAg. 



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 VV.— Arthington. Leathley. Baildon. Bolton Woods. 

 Otley. Staveley Dam, near Knaresborough. Harrogate; 

 Ripley (G. Norman). 



N.VV. — Jervaulx Abbey. Masham. 



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



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

 sporangia) ; Spring Ditch ; Cottingham ; Wawne ; Reservoir 

 Waterworks, Hull ; Hornsea Peat Deposit (G. Norman). 



1029. Melosira distans Kiitz. 



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

 Mid W.— Gilstead. 

 N.E. — Lockton. 



1030. Melosira Arenulata Kiitz. 



[Syn. M. orichalcea W. Sra.]. 

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

 man). Plentiful near Marsden. 

 N.W.— Rokeby. 



1 03 1. Melosira arenaria Moore. 

 S.W. — Roche Abbey (M. H. Stiles). 



Mid W. — Baildoffi 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 pututata W. Sm.]. 

 S.W.— Chellow Dean. 



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

 to Sutton (G. Norman). 



1033. Melosira Roesiana Rabenh. 



[Syi>. Orthosira spinosa W. Sm.J. 



