STAURASTRUM. 183 



Freshw. Alg. E. G-reenland, 1904, p. 97 ; G. S. West, Treat. Brit. 



Freshw. Alg. 1904, p. 139, f. 51 F ; W. & G. S. West, Freshw. Alg. 



Orkneys and Shetlands, 1905, p. 25. 

 St. punctulatum var. KjeUmani Wille in Dijmphna-Togtets zool.-bot. 



Udbytte, 1886, p. 86 ; Boldt, Desm. Gronland, 1888, p. 35 ; De Toni, 



Syll. Alg. 1889, p. 1190; Borg. Ferskv. Alg. Ostgronl. 1894, p. 26; 



Schmidle, Lappniark Siisswasseralgen, 1899, p. 57 ; Borg. Freshw. 



Alg. Faeroes, 1901, p. 230 ; Borge, Beitrage Alg. Schweden, 1906, p. 45 ; 



Teodoresco, Mater, flor. alg. Roiunan. 1907, p. 185 ; Larsen, Ferskvand- 



salg. Vest.-Gronl. 1907, p. 353 ; Htistedt, Desm. et Bacill. aus Tirol, 



1911, p. 337. 

 St. pnnctulatinn as figured by W. & G. S. West, Notes Alg. II, 1900, p. 297, 



t. 412, f. 13 [zygosp.] 

 St. Bieneanum Rabenh. forma groenlandica Larsen, Fresh w. Alg. E. 



Greenland, 1904, p. 96. 



Cells with a more open sinus (almost rectangular), 

 angles of semicells more rounded ; sides of vertical 

 view straight or slightly convex ; granulation on the 

 whole a little finer and denser. 



Zygospore similar to that of type, but with the 

 spines a little stouter. 



Length 30-43 p, : breadth 24-37'Oju,; breadth of 

 isthmus 9-20 ^ ; diam. zygosp. without spines 29 jit, 

 with spines 42 p.. 



ENGLAND. Blea Tarn in Borrowdale, Cumberland ! 

 Near Bowness (Bissett), Helvellyn, Stickle Tarn, and 

 Blea Tarn, Westmoreland ! Wrynose, Lancashire ! 

 Mickle Fell, N. Yorks ! Darenth Wood, Kent (with 

 zygospore) ! 



WALES. Glyder Fawr (at 2700 ft.), Snowdon (at 

 over 3000 ft.), Carnarvonshire ! 



SCOTLAND.- - General on the higher mountains! 

 (Eon Bisseft.) Up to 3500 ft. on Lochnagar, 

 Aberdeen ! Shetlands ! 



IRELAND. Lough Guitane and Carrantuohill, Kerry ! 

 Glengariff, Cork ! 



Geogr. Distribution. Germany. Austria and Galicia. 

 Roumania. Norway. Sweden. Faeroes. Nova 

 Zembla. Spitzbergen. Greenland. Azores (var.) 



In making a comparative examination of numerous forms 

 from various localities we find it impossible to separate 

 St. KjeUmani from St. punctulatum, and we have therefore 

 adopted Wille's decision of 1886 and placed it as a variety of 



