192 YORKSHIRE NATURALISTS' UNION. 



937. Epithemia gibberula (Ehrenb.) Kiitz. 

 S.W. — Cragg Vale, towards Blackstone Edge. 

 S.E.— jMarket Weighton. 



Var. rupestris (W. Sm.) Rabenli. 



[Syn. Epithemia rupestris \V. Sm.]. 

 S.W. — Crirasworth Dean. 

 Mid W. — Cray Moss. 

 N.AV.— Great Shunnor Fell. 



938. Epithemia Zebra (Ehrenb.) Kiitz. 

 S.W.— Hatfield district (M. H. Stiles). 

 X.W.— Cronkley Fell. Cotterdale. 



S.E. — Hornsea Mere ; Driffield; Wawne (O. Norman). 



Var. proboscidea ,Kiitz.) Grun. 

 S.E. — Hornsea Deposit (G. Xorman). 



939. Epithemia Hyndmanni W. Sm. 

 S.E. — Peat Deposit, Hornsea (G. Xorman). 



Genus EUNOTIA Ehrenb., 1S37. 



940. Eunotia Arcus Ehrenb. 



[Syn. Himaiitidiuin Arcus W. Sm.]. 

 S.^V. — .\skern and Ciisworth districts ; Roche Abbey (M. H. 

 Stiles). Culling^vorth. Oxenhope. Ogden Clough. 

 Mid \V. — Cocket Moss, near Giggleswick. Penyghent. 

 N.A\'. — Cautley Spout. Mickle and Cronkley Fells. Great 

 Shunnor Fell. 



N.E.— Goathland. 



S.E. — Wawne (G. Xorman). 



Var. minor ^^.H. 

 S.W.— Hatfield district; Rossington (M. H. Stiles). 



Var. bidens V.H. 

 S.^^'. — Askern district ; Roche Abbey (M. H. Stiles). 



941. Eunotia major (W. Sm.) Rabenh. 



[Syn. Himaiitidiuin majus \\. Sm.]. 

 S.^^'. — CuUingworth. Keighley Moor. 

 Mid W.— Black Hill, near Settle. 



Trans, Y.N.U., 1901 (pub. July 1901). Bot. Series, Vol. 5. 



