W. WEST AND G. S. WEST: ALOA-Fr.ORA OF YORKSHIRK. 1 29 

 CiEXlTS PALMELLA Lyngb., 1817 ; Nag., 1849. 



621. Palmella mucosa Kiitz. 

 S.W. — Keighley. Doncaster. Goole. 

 Mid W. — Beamsley Beacon. 



N.W. — Cronkley Fell. Great Shunnor Fell. Cotterdale. 

 N.E.— Strensall! (W. B. Turner). 



622. Palmella hyalina Breh. 

 S.W.— Cullingworth (T, Hebden). 

 Mid W.— Gar forth (H. F. Parsons). 

 N.W.— Cotterdale. 



N. R. — Strensall (W. B. Turner). Scarborough Mere. 



Genus BOTRYDINA Breb. 



623. Botrydina vulgaris Brel). 



Mid \V. — Harrogate (Abbott, Emsley and Turner). Head- 

 • ingley (W. B. Turner). Penyghent. Ingleborough. Whernside. 

 Bolton Woods. Also in abundance on peat, Simon Seat. 



N.W. — Howgill Fells. In profusion amongst Teiraphis 

 pellucida and Lencohryum glauciim. 



Sub-Family DiCTVcsPHyERiE/E. 

 Genus TETRACOCCUS West, 1892. 



624. Tetracoccus botryoides West. 

 S.E. — Skipwith Common. 



Genus BOTRVOCOCCUS Kiitz., 1849. 



625. Botryococcus Braunii Kiitz. 



S.W. — Bradford. Cragg Vale, towards Blackstone Edge. 



Mid W. — Arthington. Cray Moss. Giggleswick Common. 

 Two miles south of Clapham. 



N.W. — Bog near Widdale Beck. Great Shunnor Fell. 



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

 Thirsk. Near Scarborough. 



S.E. — Hornsea Mere. 



626. Botryococcus calcareus West. 

 Mid ^^^ — Malham. 



