W. WEST AND G. S. WEST : ALGA-FLORA OF YORKSHIRE. l6l 



S.W, — Woolley. Bradford. Ogden Clough. Roche Abbey 

 (J. N. Coombe; M. H. Stiles). Askern and Cusworth districts ; 

 Firsby reservoir; Doncaster town water (M. H. Stiles). 



Mid W. — Roundhay (W. B. Turner). Baildon. Moughton 

 Fell. Whernside (1900 ft.). 



N.W.— Frequent. Great Sleddale. 



S.E.- — Riccall Common. Beverley. Hull. Spring Ditch ; 

 Newsholme Lake (G. Norman). 

 Var. parva (W. Sm.) V. H. 



[Syn. Cocconevia parvutn W. Sm.]. 



S.W. — Askern district ; Doncaster town water (M. H. Stiles). 

 Goole ; Roche Abbey (E, Hunter). ■ Bradford. Bingley. 

 Denholme. 



Mid W. — Baildon. Wigton Moor. Holden Gill, near Keighley. 

 Cowside Beck, Arncliffe. Cocket Moss, near Giggleswick. 



N.E. — Common. Staindale. Hayburn Wyke. Saltburn. 



N.W.— Dodd Fell. 



S.E.— Anlaby Road (Dr. Munroe). Hull (G. Norman). 

 809. Cymbella Cistula (Hempr.) Kirchn. 



[Syn. Cocconema Cistula Hempr.]. 



S.W.— Bradford. Roche Abbey (J. N. Coombe; M. H. 

 Stiles). Askern, Cusworth, and Hatfield districts; Rossington; 

 Firsby reservoirs and Doncaster town water (M H. Stiles). 



Mid W. — Rombald's Moor. Moughton Fell. Arthington. 

 Staveley Dam, near Knaresborough. Cowside Beck. Arncliffe. 

 Linn Gill. Whernside. 



N.W.— Dodd Fell. Cautley Spout. 



N.E. — Common. Staindale. 



S.E. — Beverley ! Loftsome Bridge, near Wressle. Spring 

 Ditch; Hornsea Peat Deposit; Skirlaugh; Wawne (G. Norman). 

 Var. maculata (Kiitz.) Grun. 



[Syn. Cymbella inaculaia Kiitz.]. 



S.W. — Firsby reservoir (M. H. Stiles). 



Mid W. — Boston Spa. 



N.W.— Lund's Fell. 



