94 YORKSHIRE NATURALISTS' UNION. 



427. Cosmarium laeve Rabenh. 



Mid W.— Boston Spa. Cocket Moss, near Giggleswick. 

 Bog two miles south of Clapham. Ingleton. Ribblehead. 

 N.W.— Mossdale Moor, Widdale Fell. 



Var. septentrionale Wille. 

 S.W. — Ogden Clough. Crimsworth Dean. 

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

 N.E. — Scarborough Mere. 



428. Cosmarium elegantissimum Lund. 

 N.E. — Pilmoor, near Thirsk. 



S.E. — Skipwith Common. 



429. Cosmarium Thwaitesii Ralfs. 



[Syn. Calocylindrus Thwaitesii (Ralfs) Schaarschm.] 

 S.W. — Thornton Moor. Frizinghall. Cullingworth. 

 Mid W. — Adel Bog. Baildon. Rombald's Moor. Peny- 

 ghent. Whernside. 



N.W. — Mickle and Cronckley Fells. Bog near Widdale Beck. 

 N.E.— Strensall. 



430. Cosmarium Cucurbita Breb. 



[Syn. Calocylindrus cucurbita (Breb.) Kirchn.]. 



S.W. — Cragg Vale, towards Blackstone Edge. Cullingworth. 

 Doncaster. Keighley Tarn. Thornton Moor. 



Mid W.— Rombald's Moor. Black Hill, near Settle. Mal- 

 ham Tarn Bog. Ingleborough. Penyghent. Old Cote Moor. 

 Oughtershaw Tarn. Cam Fell, ^^■hernside (with zygospores). 



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

 Shunnor Fell. Birkdale Tarn Moss. Lund's Fell (at 2,000 ft.). 

 Mossdale Moor, Widdale Fell. Bog near Widdale Beck. Hun- 

 ter's Hole, Craydale Moor (1,900 ft.). Cowgill Wold Moss, 

 Widdale Fell. 



N.E. — Carlton Bank. Scarborough Mere. Strensall ! (W. 

 B. Turner). Pilmoor, near Thirsk. 



431. Cosmarium Palangula Br^b. 



Mid W.— Cocket Moss, near Giggleswick. Cowside Beck, 

 Arncliffe. Old Cote Moor. 

 N.E. — Peat deposit, Filey. 



Trans. Y.N.U., 1897 (pub. Dec. 1900). Bot. Series, Vol. 5. 



