1 86 YORKSHIRE NATURALISTS* UNION. 



Var. Vibrio (Ehrenb.) V. H. [Syn. G. Vibrio Ehrenb.]. 



S.W. — Askern district (M. H. Stiles). Ogden Clough. 

 Cullingworth. Crimsworth Dean. 



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

 Gill. Near Knaresborough. 



N.W.— Sedbergh. 



S.E.- — River Hull at Wawne (G. Norman). 



916. Gomphonema ventricosum Greg. 

 N.W. — Cautley Spout, with sporangial valves. 



917. Gomphonema olivaceum (Lyngb.) Kiitz. 

 S.W.— Rossington (M. H. Stiles). Hatfield Chase (J. M. 



Kirk). Bradford. 



Mid W. — Roundhay (W. B. Turner). Kilnsey. Ingleton. 

 Malham Tarn. Whernside. 



N.W. — Near Sedbergh. Jervaulx Abbey. Snaizeholme Beck. 

 Dodd Fell. Mickle Fell. 



N.E. — Scarborough Mere. Terrington. 



S.E. — Near Sutton. Newsholme. Near Meaux bbey. 

 Benningholme ; Cottingham ; Reservoir Waterworks, Hull 

 (G. Norman). 



918. Gomphonema parvulum Kiitz. 

 S.W. — Marley, near Bingley. 



Mid W.— Boston Spa. 

 N.W.— Jervaulx Abbey. 

 N. E. — Terrington. 



Var. lanceolatum V.H. 

 N.W. — Jervaulx Abbey. 



919. Gomphonema angustatum Kiitz. 

 Mid W. — Cocket Moss, near Giggleswick. 

 N.W. — Bog, near Widdale Beck. 



N.E. — Pilmoor, near Thirsk. 



920. Gomphonema insigne Greg 

 S.E.— Newbald (G. Norman). 



Trans Y, N.U., 1901 (pub. July 1901). l!ol. Scries, Vol. 5. 



