W. WEST AND G. S. WEST: ALGA-FLORA OF YORKSHIRE. I9I 



water (M. H. Stiles). Cullingworth. Ogden Clough. Crims- 

 worth Dean. 



Mid W.— Baildon. Adel Bog. Malham Tarn. Holden Gill, 

 near Keighley. South of Cray Moss. Near Buckden. 



N.W.— Cautley. Cronkley Fell. Great Shunnor Fell. Cotter- 

 dale. 



N.E.— Scarborough Mere. Staindale. Levisham. Moist ground, 

 Whitenab, Scarborough (with sporangial forms). Carlton Bank. 

 Malton. Stokesley. 



S.E.— Market Weighton. Risby Pond; Driffield (G. Nor- 

 man). 



Var. ventricosa (Kiitz.) V.H. 



[Syn. Epitliemia ventricosa Kiitz. J. 



S.W.— Roche Abbey (M. H. Stiles). 



Mid W.— Moughton Fell. 



N.W.— Mickle Fell. Great Shunnor Fell. 



N.E.— Lockton. 



S.E. — Risby Pond ; Wawne ; Hornsea Peat Deposit (G. 

 Norman). 



936. Epithemia Argus (Ehrenb.) Kiitz. 



S.W. — Near Bradford. Cullingworth. 



Mid W. — South of Cray Moss. 



N.W — Masham. Holwick. Mickle Fell. Great Shunnor 

 Fell. Cotterdale. Great Sleddale. 



N.E. — Moist ground, Whitenab, Scarborough. Great Ayton. 

 Stokesley. 



S.E. — Newsholme. Hornsea Deposit (G. Norman). 



Var. alpestris (VV. Sm.) Rabenh. [Syn. Epithemia alpes- 

 tris W. Sm. ; E. Argus var. amphicephala Grun.]. 



S.W. — Cullingworth. Ogden Clough, in gelatinous masses 

 with auxospores and sporangial valves. Hebden Bridge. 



Mid W. — Cray Moss. 



N.W.— Cautley Spout. 



N.E. —Staindale. Beast Cliff. 



S.E. — Hornsea Deposit (G. Norman). 



