W. WEST AND G. S. WEST: ALGA-FT.ORA OF YORKSHIRE. 59 



Van nodulosum (Brdb.) West cSi G. S. West. 



[Syn. Docidium iiodulosiim Brdb.]. 

 Mid W.— Adel Bog (W. B. Turner). 

 N.W. — Mickle and Cronkley Fells. 



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

 Terrington. Carlton Bank. 



— — Forma labiata Turn. 



[Syn. Docidium nodulosum var. labiatum Turn.]. 

 N.E.— Gorniire (W. B. Turner). 



Note. — This was recorded in the Naturalist, Sept., 1887, 

 p. 275, as ^Docidium triincatum y labiatum Turn.,' but in the 

 October number, p. 290, he stated this to be an error, and that 

 it should be D. nodulosum y labiatum Turn. 



244. Pleurotaenium Hutchinsonii (Turn.). 



[Syn. Docidium Hutchinsonii Turn.]. 

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



245. Pleurot«enium truncatum (Bre'b.) Nag. 



[Syn. Docidium truncatum Bre'b.J. 

 S.W. — Rawcliffe Common. 



Mid W.— Shipley Glen. Ilkley (W. H. Dikes). Malham 

 Cove (J. M. Kirk). Staveley Dam, near Knaresborough. 

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



Var. crassum Boldt. 

 N.E.— Gormire (W. B. Turner). 



Genus TETMEMORUS Ralfs, 1844. 



246. Tetmemorus Brebissonii (Menegh.) Ralfs. 

 S.W. — Near Halifax. CuUingworth. 



Mid W. — Adel Bog. Blubberhouses (W. B. Turner). Cocket 

 Moss, near Giggleswick. Bog two miles south of Clapham. 

 Ingleborough. Cam Fell. 



N.W.— Mickle Fell. Cotterdale. Bog near Widdale Beck. 



N.E.— Strensall ! (W. B. Turner). 



247. Tetmemorus granulatus (Breb.) Ralfs. 



S.W. — Fairly general, but not common. Rawcliffe Common. 



