ii:S VORKSHiRE NATURALISTS UNION. 



N.W.— Cronkley Fell. 



N.E. — Decoy Pond, Gormiie (W. B. Turner). Strensall (W. B. 

 Turner). Pilmoor, near Thirsk. 



Order SIPHONE.E. 

 Family VA UCHERIA CE. E. 

 Genus VAUCHERIA DC, 1803. 



531. Vaucheria sessilis (Vauch.), DC. 

 S.W.— Ogden Clough. 



Mid W. — Baildon. Adel Bog (J. Abbott), Whernside. 

 N.E.— Carlton Bank. 



S.E. — Eoftsome Bridge, near Wressle. Newsholme. Market 

 Weighton. Near Sutton. Meaux Abbey. 

 Var. csespitosa (Vauch.), Rabenh. 

 Mid W.— Markington (Rev. J. S. Tute). Arncliffe. 

 N.\V._Dent ! (H. F. Parsons). 



532. Vaucheria aversa Hass. 

 S.E. — Newsholme, near Howden. 



533. Vaucheria sericea Lyngb. 

 N.W. — Great Shunnor Fell. 



S.E. — Beverley. 



534. Vaucheria geminata (Vauch.), DC. 

 S.W.— Bradford. 



Mid W. — Baildon. Headingley ; Harrogate (J. Abbott). 



Var. racemosa Walz. 



Mid W. — Meanwood (J. Abbott;. Ingleborough. 



535. Vaucheria dichotoma (L.), Ag.var. submarinaAg. 

 S.W.— Goole. 



536. Vaucheria terrestris Lyngb. 



S.W, — Common about Bradford. Keighley (T. Ilebden). 

 Grimescar. 



Mid W. — Holden Ghyll, near Keighley. 



537- Vaucheria hamata (Vauch.), Lyngb 

 S.W. — Calverley, on damp mud. 



Trans. Y.N.U., iS99(|)u1j. July 1901). Dot. Scries, Vul. 5, 



