W. WEST AND G. S. WEST? : ALGA-FLORA OF YORKSHIRE. 6 1 



N.W. — Mickle and Crohkley Fells. 

 N.E. — Pilmoor, near Thirsk. 



251. Euastrum humerosum Ralfs. 

 N.E. — Pilmoor, near Thirsk (vi. 1898). 



252. Euastrum oblongura (Grev.) Ralfs. 

 S.W. — Rawcliffe Common. CuUingworth. 



Mid W.— Markington ! (Rev. J. S. Tute). Adel. Malham 

 Tarn Bog. Cocket Moss, near Gigglesvvick. Giggleswick 

 Common. 



N.W. — Mickle and Cronkley Fells. Snaizeholme Fell. 



N.E. — Strensall ! (W. B. Turner). Pilmoor, near Thirsk (with 

 zygospores). Terrington. 



S.E. — Skipwith Common. 



253. Euastrum didelta (Turp.) Ralfs. 

 S.W. — CuUingworth. 



Mid W.— Eldwick. Adel ! (W. B. Turner). Ilkley (W. H. 

 Dikes). Bride Cross, above Farnley Moor. Malham Cove 

 (J. M. Kirk). Cocket Moss, near Giggleswick. Gigglesvvick 

 Common. Ingleborough. Cam Fell. 



N.W. — Mickle and Cronkley Fells. Great Sleddale. Lund's 

 Fell. Bog near Widdale Beck. 



N.E.— Strensall ! (W. B. Turner). Scarborough Mere. 



254. Euastrum affine Ralfs. 



Mid W. — Bog two miles south of Clapham. Cam Fell. Cow- 

 gill Wold Moss, Widdale Fell. Whernside. 

 N.W. —Mickle Fell. Bog near Widdale Beck. 



255. Euastrum ampullaceum Ralfs. 

 S.W. —CuUingworth. 



Mid W.— Adel Dam (W. B. Turner). Wigton Moor. Ilkley 

 (W. H. Dikes). Whernside. 

 N.W. — Bog near Widdale Beck. 



256. Euastrum sinuosum Lenorm. 



[Syn. E. circulare Hass.J. 

 Mid W. — Baildon. Penyghent. 



