W. WEST Af^D G. S. WEfet : ALGA-FLORA Or* VORKSHiRE. 1 05 



493. — Staurastrum inflexum Bix^b. 

 Mid W. — Malham Tarn. Bog two miles south of Clupham. 

 N.W.— Mickle Fell. 



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

 Stokesley. 



494. Staurastrum polymorphum Breb. 

 S.W. — Rawcliffe Common. Denholme. 



Mid W. — Rombald's Moor. Wigton Moor. Malham Tarn. 

 Bog two miles south of Clapham. Ingleborough. Penyghent. 

 South of Cray Moss. Cam Fell. 



N.W. — Mickle and Cronkley Fells. Great Shunnor Fell, 

 Birkdale Tarn Moss. Great Sleddale. Keld. Near Moorcock 

 Inn. Mossdale Moor, Widdale Fell. Bog near Widdale Beck. 



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



S.E. — Riccall Common. 



495. Staurastrum crenulatum (Nag.) Delp. 

 Mid W. — Roundhay Park, Feeds. 



N.W.— Cautley Spout. 



N.E. — Pilmoor, near Thirsk (with 5-ra}ed forms). Stokesley. 



496. Staurastrum eboracense Turn. 

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



497. Staurastrum Heimerlianum LUtkem. 



[Syn. .S". cruciatum Heimerl.]. 

 Mid W. — Cam Fell (viii. 1896). 



498.— Staurastrum gracile Ralfs. 

 S.W.— Rawcliffe (H. F. Parsons). ^Vakefield (W. H. Dikes). 

 Mid W. — Malham Tarn. Bramhope (J. Abbott). Cocket 

 Moss, near Giggleswick. Ingleborough. 



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

 Thirsk. 



S.E. — Riccall Common, 



Var. nanum Wille. 

 N.E. — Pilmoor, near Thirsk. 

 S.E. — Skipwith Common. 



