54 YORKSHIRE NATURALISTS' UNION. 



Mid W. — Cocket Moss, near Giggleswick. 



215. Closterium abruptum West. 



Mid W. — Above Eldwick. Cocket Moss, near Giggleswick. 

 N.W.— Mickle Fell. 



216. Closterium toxon West. 



N.E. — Pilmoor, near Thirsk. 

 S.E. — Skipvvith Common. 



217. Closterium pusillum Hantzsch. var. major Racib. 

 Mid W. — Cocket Moss, near Giggleswick. 



N.W.— Mickle Fell. 



218. Closterium praelongum Breb. 

 Mid W. — Malham Tarn Bog. Boston Spa. 

 S.E. — Riccall Common. 



Forma brevior West. 

 S.W. — Rawcliffe Common. Heaton. 

 Mid W.— Malham Tarn. 

 N.E. — Terrington. 



219. Closterium gracile Bre'b. 



Mid W. — Wigton Moor. Cocket Moss, near Giggleswick. 



N.W. — Great Shunnor Fell. 



N.E. — Pilmoor, near Thirsk. Terrington. 



S.E. — Riccall and Skipwith Commons. 



220. Closterium aciculare Tuffen West. 

 Recorded from 'Yorkshire' in Cooke's Brit. Desm., p. 37. 



221. Closterium angustatum Kiitz. 

 Mid W. — Cocket Moss, near Giggleswick. 

 N.E. — Strensall Common (W. B. Turner). 



222. Closterium costatum Corda. 

 S.W. — CuUingworth. 



Mid W. — Cocket Moss, near Giggleswick. 

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

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

 Terrington. 



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



