1 98 YORKSHIRE NATURALISTS' UNION. 



Mid W.— Roundhay; South Milford (\V. B. Turner). Aust- 

 wick. Baildon. Malham Cove (J. M. Kirk). Boston Spa. 

 Knaresborough. Bell Busk. 



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

 N.E. — Malton; Scarborough. 



S.E. — Beverley. Routh. Spring Ditch; Risby Pond; River 

 Derwent; Cottingham; Newbald; Wawne; Reservoir Water- 

 works, Hull (G. Norman). 



Van subaequalis (Grun.) V.H. 

 S.W.— Hatfield district (M. H. Stiles). 



Var. jequalis (Kiitz.) Rabenh. [Syn. 5. ceqtcalis Kiitz.]. 

 S.E. — Riccall Common. 



Var. longissima (\V. Sm.) Grun. 



[Syn. S. longissima W. Sni.l. 

 S.W.— ^^'ilsden. 



Mid W. — Rombald's Moor. 



Var. amphirhynchus (Ehrenb.) V.H. 



[Syn. 61 amphirhynchus Ehrenb.]. 

 S.W.— Doncaster town water (M. H. Stiles). 



Yzx. obtusa (W. Sm.) V.H. [Syn. 5. obtiisa \V. Sm.]. 

 N.E.— Egton. 



Var. oxyrhynchus (Kiitz.) V.H. 



[Syn. 6. oxyrhynchus Kiitz.]. 

 S.W. — Cullingworth. 



959. Synedra Acus (Kiitz.) Grun. 

 S.W.— Hatfield district; Rossington (jM. H. Stiles). Greet- 

 land, near Halifax. Fixby. 



Mid W. — Kihisey. Bell Busk, ^\'igton Moor. Bolton Woods. 

 Harrogate. Ilkley. 



N.E. — Pilmoor, near Thirsk. Ingleby. Malton. 

 S.E. — Loftsonie Bridge, near ^\Tessle. Newsholnie. Near 

 Meaux Abbey. Skipwith Common. 



Var. delicatissima (^^'. Sm.) Grun. 



[Syn. ^. delicatissifiiO'VJ . Sm.J. 

 t 



Trans, V.M.U., 1901 (pub. July 1901). Bot Series, Vol, 5. 



