W. WEST AND G. S. WEST: ALGA-FLORA OF YORKSHIRE. 7 1 



N.E. — Gormire (W. B. Turner). Strensall. Pilmoor, near 

 Thirsk. 



S.E. — Riccall Common. 



308. Cosmarium ornatum Ralfs, 



Mid W. — Blubberhouses (W. B. Turner). Cocket Moss, near 

 Giggleswick. 



N.W.— Great Shunnor Fell. 

 N.E.— Strensall ! (W. B. Turner). 

 S.E. — Riccall and Skipwith Commons. 



309. Cosmarium commissurale Br^b. 

 S W. — Rawcliffe Common. 



N.E. —Strensall. 



310. Cosmarium reniforme (Ralfs) Arch. 

 Mid W. — Wigton Moor. 



N.E. — Gormire (W. B. Turner). Strensall. Pilmoor, near 

 Thirsk. Carlton Bank. Stokesley. 

 S.E. — Riccall and Skipwith Commons. 



311. Cosmarium margaritiferum (Turp.) Menegh. 

 S.W.— Hatfield Chase (J. M. Kirk). 



Mid W. — Malham Tarn. 



N.E.— Strensall ! (W. B. Turner). Gormire (VV. B. Turner). 



N.W.— Mickle and Cronkley Fells. Cotterdale. 



S.E. — Riccall Common. Hornsea Mere. 



312. Cosmarium Brebissonii Menegh. 

 S.W.— Cullingworth. 



Mid W. — Adel Bog. Blubberhouses (VV. B. Turner). Malham 

 Tarn Bog. Cocket Moss, near Giggleswick. Bog two miles 

 south of Clapham. 



N.W. — Mickle and Cronkley Fells. Great Shunnor Fell. 



N.E. —Strensall. 



Forma erosa West. 



N.W.— Cronkley Fell. 



313. Cosmarium Logiense Biss. 



Mid W. — Cocket Moss, near Giggleswick. Ingleton. Bow- 

 land Knotts, 



