W. WEST AND G. S. WEST I ALGA-FLORA OF YORKSHIRE. 189 



N.E.— Strensall (W. B. Turner). Saltburn. 

 S.E. ^Beverley. Routh. Near Meaux Abbey. Waghen. 

 Coftingham ; Wawne (G. Norman). 



■•929. Achnanthes Biasolettiana Gnm. 

 N.W. — Jervaulx Abbey. 



930. Achnanthes Hungarica Grun. 

 S.VV.— Horton Park, Bradford. 



N.W. ^Jervaulx Abbey, vii., 1898, abundant. 



Genus COCCONEIS Ehrenb., 1835. 



931. Cocconeis Pediculus Ehrenb. 



S.W. — Cusworth and Hatfield districts ; Rossington (M. H. 

 Stiles). Castleford. 



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

 Esholt. Holden Gill, near Keighley. -Vrtliington. Harrogate. 

 Bolton Woods. Near Settle. Kilnsey. Cowside Beck, ArnclifFe. 

 Oughtershaw Moss. Ingleton. Ribblehead. Bog two miles 

 south of Clapham. Moughton Fell. Knaresborough. 



N.W. — Duerley Beck, near Hawes. 



N.E. — Frequent. Hayburn Wyke. Scalby Beck. Terrington. 

 Rievaulx Abbey. Malton. Stokesley. 



S.E. — Beverley. Cottingham ; River Hull, etc. (G. Norman). 



932. Cocconeis Placentula Ehrenb. 



S.W. — Askern and Hatfield districts ; Firsby Reservoirs ; 

 Rossington (M. H. Stiles). Roche Abbey (M. H. Stiles ; J. N. 

 Coombe). Marley, near Bingley. Ogden Clough. Doncaster. 

 Frizinghall. 



Mid W. — Harrogate (G. Norman). Baildon. Malham Tarn. 

 Moughton Fell. Cowside Beck, Arncliffe. Ha\vksworth Springs. 



N.W. — Masham. Great Shunnor Fell. Jervaulx Abbey. 

 Dodd Fell. 



N.E. — River Derwent, Forge Valley. Seamer. Saltburn. 

 Carlton Bank. 



S.E.— Hornsea Mere. Routh. Newsholme. Beverley. Loft- 

 some Bridge, near Wressle. 



