66 YORKSHIRE NATURALISTS' UNION. 



S.W. — Cullingworth. 



Mid W. — Eldwick. Cocket Moss, near Giggleswick. Giggles- 

 wick Common. Bog two miles south of Clapham. Ingleborough. 



N.W.— Mickle Fell. Lund's Fell. Mossdale Moor, Widdale 

 Fell. Bog near Widdale Beck. Hunter's Hole, Craydale Moor 

 (1,900 feet). 



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



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



278. Micrasterias crenata Brdb. 

 S.^^^— Cullingworth. 



Mid W.— Eldwick. Ilkley (W. H. Dikes). 

 N.W.— Mickle and Cronkley Fells. 

 N.E. —Strensall ! (W. B. Turner). 



279. Micrasterias papillifera Brdb. 

 Mid W.— Add Dam (W. B. Turner). 

 S.W. — Cullingworth. 



N.W.— Cronkley Fell. Birkdale Tarn Moss. 

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

 Terrington. 



280. Micrasterias apiculata (Ehrenb.) Menegh. sub- 

 species fimbriata (Ralfs) Nordst., 1888. 



[Syn. M. fimbriata Ralfs, 1848I. 

 S.W. -Cullingworth. 



Mid W.— Adel Dam (W. B. Turner). Eldwick. 



281. Micrasterias rotata (Grev.) Ralfs. 

 S.W. — Cullingworth. 



Mid W.— Adel Bog. Harrogate (J. M. Kirk). Cocket M6ss, 

 near Giggleswick. 



N.W.— Mickle and Cronkley Fells. 



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



282. Micrasterias denticulata Br^b. 

 Probably general, but very local. 



S.W.— Cullingworth. 



Mid W. — A\'igton Moor. Adel and Eldwick, pure gatherings. 



Trsns. Y.N.U., 1837 (pub. Dec. 1900). Bot. Series, Vol. 5. 



