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. Mic raster! as crenata Brdb. 

 S.W. — Cullingworth. 



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

 N.W.— Mickle and Cronkley Fells. 

 N.E— Strensall ! (W. B. Turner). 



279. Micrasterias papillifera Bv^h. 

 Mid W.— Adel 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. AI. fimbriata Ralfs, 1848]. 

 S.W. — Cullingworth. 



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



281. Micrasterias rotata (Grev.) Ralfs. 

 S.W.— CuUingworth. 



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

 near Giggleswick. 



N.W.— Mickle and Cronkley Fells. 



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



282. Micrasterias denticulata Brdb. 

 Probably general, but very local. 



S.W.— Cullingworth. 



Mid W. — Wigton Moor. Adel and Eldwick, pure gatherings. 



Trans. Y.N.U., 1857 (pub. Dec. 1900). Bot. Series, Vol. 5. 



