56 YORKSHIRE NATURALISTS' UNION. 



N.W.— Mickle Fell. 



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



S.E. — Skipwith Common. 



228. Closterium juncidum Ralfs. 



Mid W.— Moor-Allerton (W. B. Turner). Baildon. Wigton 

 Moor. Cocket Moss, near (jiggleswick. 

 N.W.— Cronkley Fell. 

 N.E.— Strensall ! {W. B. Turner). 

 S.E. — Riccall and Skipwith Commons. 



229. Closterium turgidum Ehrenb. 

 N.W.— Great Shunnor Fell. 



N.E. — Pilmoor, near Thirsk. 



230. Closterium Pritchardianum Arch. 

 S.W, — Crimsworth Dean. 



S.E.— Market Weighton. 



231. Closterium pronum Breb. 



S.W. — Rawcliffe Common. Keighley Moor. 



Mid W. — Whernside. 



N.W.— Mickle Fell. 



S.E. — Skipwith Common ! (Rev. W. Fowler). 



232. Closterium subpronum West. 

 Mid W. — Malham Tarn. 



N.E. — Pilmoor, near Thirsk. 

 S.E. — Sandholme. 



233. Closterium ceratium Perty. 

 N.W.— Mickle Fell. 



234. Closterium acutum (Lyngb.) Ralfs. 

 S.W. — Cullingworth. Keighley Tarn. 



Mid W. — Markington, with zygospores ! (Rev. J. S. Tute). 

 Adel Bog (W. B.Turner). Eldwick. Bride Cross, above Farnley 

 Moor. Bowland Knotts. Staveley Dam, near Knaresborough. 



N.W.— Mickle Fell. Reeth. 



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



S.E.— Routh. 



Trans. Y.N.U., 1897 (pub. Dec. 1900). Bot. Series, Vol. 3. 



