W. WEST AND G. S. WEST : ALGA-FLORA OF YORKSHIRE. 93 



423. Cosmarium Regnellii Wille. 



N.E. — Pilmoor, near Thirsk. 

 4'2 4. '(iosmafimnMeneghinii Br^b. 



S.W. — Doncaster. Ogden Clough. Cullingworth. 



Mid W. — Blubberhouses (\V. B. Turner). Boston Spa. Afal- 

 ham Tarn. Penyghent. Arthington. Markington, with zygo- 

 spores ! (Rev. J. S. Tute). Adel Bog. Baildon. Rombald's 

 Moor. 



N.W. — Mickle and Cronkley Fells. Jervaulx Abbey. 



N.E. — Gormire; Strensall (\V. B. Turner). Pilmoor, near 

 Thirsk. Saltburn. 



S.E. — Riccall Common. Skipwith Common ! (Rev. W. 

 Fowler). Newsholme. Hornsea Mere. 

 Forma octangularis Wille. 



S.W.— Denholme. 



Mid VV.^Adel. Rotnbald's Moor. Ben Rhydding. Brear- 

 ton, near Knaresborough. Malham Tarn. 



N.AV. — Jervaulx Abbey. 



N.E. — Terrington. Malton. 



S.E. — Riccall Common. Newsholme. Hornsea Mere. 

 Var. WoUei Lagerh. 



S.E. — Riccall Common. 



425. Cosmarium angulosum Breb. 

 N.E. — Pilmoor, near Thirsk. 



S.E. — Skipwith Common. 



426. Cosmarium difficile Liitkem. 

 S.W. —Cullingworth. 



Mid W.— Adel Bog. 

 N.W. —Mickle Fell. 

 N.E. — Carlton Bank. Stokesley. 



Var. sublseve Liitkem. 

 S.W.— Cullingworth. 



Mid W.— Cocket Moss, near Giggleswick. 

 N.E. —Strensall Common. Pilmoor, near Thirsk. 

 S.E. — Skipwith Common. 



