i6o YORKSHIRE ijATlfRALISTS' UNION. 



803. Cymbella subaequalis Grun. 



S.W.— Cusworth district, Doncaster (M. H. Stiles). 



804. Cymbella delicatula Kutz. 



S.W.— Cusworth district, Doncaster (M. H. Stiles). 



805. Cymbella affinis Kiitz. 



S.W. — Marley, near Bingley. Ogden Clough. Crimsworth 

 Dean. 



Mid W. — Near Buckden. Penyghent. Harrogate. 

 N.E. — Rievaulx Abbey. 



806. Cymbella gastroides Kiitz. 



S.W. — Goole ; Roche Abbey Lake (E. Hunter). Askern and 

 Hatfield districts ; Firsby Reservoirs (M. H. Stiles). Marley, 

 near Bingley. 



Mid W. — ^aildon. Ribblehead. Ingleton. Simon's Fell 

 (iv. 1892). 



807. Cymbella lanceolata (Ehrenb.), Kirchn. 



[Syn. Cocconema lanceolatum Ehrenb,]. 



S.W. — Cusworth district ; Doncaster town water ; Firsby 

 reservoirs ; Rossington ; Hatfield district (M. H. Stiles). 

 Askern (F. H. Allen ; J. M. Kirk ; M. H. Stiles). Hatfield 

 Chase (J. M. Kirk). Roche Abbey (J. N. Coombe ; M. H. 

 Stiles). Nab Wood, near Bingley. Bradford. 



Mid W. — Birk Crag, Harrogate (G. Norman). Roundhay 

 (W. B. Turner). Baildon. Moughton Fell. Holden Gill, 

 near Keighley. Horton-in-Ribbiesdale. Arthington. Malham 

 Tarn Bog. Buckden. 



N.E. — Staindale. Hayburn Wyke. Cleave Cliffs, north of 

 Scalby. Carlton Bank, Stokesley. 



S.E. — Beverley. Spring Ditch ; Wawne ; Risby Pond ; New- 

 bald ; Hornsea Peat Deposit ; Driffield (G. Norman). 



Var. Boechii Ehrenb. ; Rabenh. [non Doryphora 

 Boechii W. Sm.^^Brebissonia Boechii (Kiitz.) Grun.J. 



S.W.— Roche Abbey (E. Hunter). 



808. Cymbella cymbiformis (Kiitz.) Br^b. 



[Syn. Cocconema cymbiforme (Kiitz.) Ehrenb.]. 



Trans. Y.N.U., 1899 (pub. July igoi). Bot. Series, Vol. 5. 



