W. WKST AND G. S. WEST: ALGA-FLORA OF YORKSHIRE. lOI 



471- Staurastrum suborbiculare West & (i. S. West. 

 Mid ^\'.— Cam Fell, abundant in a gelatinous mass of Cj/hi- 



drocystis crassa, Hyalotheca dissiliens, etc. 



472- Staurastrum Bieneanum Rabenh. 

 N.E.— Pilmoor, near Thirsk. 



473- Staurastrum dilatatum Ehrenb. 

 S.W. — Cullingworth. 



Mid W.— Roundhay Park, Leeds. Ben Rhydding. 

 N.E. — Strensall Common. Pilmoor, near Thirsk. 

 S.E. — Riccall and Skipwith Commons. 



Var. obtusilobum DeNot. 

 Mid W. — Near Knaresboiougli. 

 N.E. — Pilmoor, near Thirsk. 

 S.E. — Skipwith Common. 



474- Staurastrum alternans Breb. 



Mid W. — Blubberhouses (y\. B. Turner). Cocket Moss, near 

 Giggleswick. 



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

 S.E. — Riccall Common. Market Weighton. 



475- Staurastrum punctulatum Breb. 



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

 Common. Crimsworth Dean. Halifax. Oxenhope. Allerton. 

 Heaton. Frizinghall. Cullingworth. Keighley (with zygos- 

 pores). 



Mid W.— Roundhay ! (W. B. Turner). Adel Bog. Near 

 Norwood Hall, above Lindley Wood Reservoir. Arthington. 

 Rombald's Moor. Ilkley. Bolton Woods. Kildwick. Malham 

 Tarn. Giggleswick Common. Black Hill, near Settle. Peny^ 

 ghent. Baildon. 



N.W.--Cautley Spout. Mickle and Cronkley Fells. Great 

 Shunnor Fell. Bog near Widdale Beck. 



N.E.— Strensall ! {\\\ B. Turner). Carlton Bank. Near 

 Scarborough. 



Bot, 5— G 



