ALGiE OF WEST IRELAND*- ' 181 



55. Staubastrum: haaboeliense, Wille. : {Bidrag til Kunds. 

 om Norges Ferskv. Alg. p. 42, tab. 2. fig. 27.) 

 I. Ballynahinch. 



fig. 10. 



JftiM 



to 



Forma trigona. 



I. Ballynahinch; Derryclare Lough; Lough Shindilla. — II. 



Clogerheen. 



Forma tetragons. 



II. Muckross ; Adrigole. 



57. S. ARCTTATmi, Nord. {Norges Desm. p. 30, tab. 1. fig. 18.) 

 I. Lakes E. of Lough Bo fin. — II. Near Lough Brin. 



ttVar. GuiTANENSE, nov. var. (PI. XX III. fig. 10.) 

 c A forma typica differt isthmo latiore, processibus brevioribus 

 cum delicatioribus spinis ad apices processuum, prominentia 

 brevioribus bifidis, longitudine relative majore. 



40 



II. Lough Guitane. 



»/' 



Moher 



den. — II. Lough Guitane ; Lower Lake of Killarney 



tab. 22. fig. 9, tab. 34. fig. 6. 



Balfi 



Porma trigona. 



I. Lakes near Recess; Ballynahinch; Lough Shannacloou- 



tippen. — II. Kenmare; Adrigole. 



Porma tetragona. 



I. Near "Westport; Derryclare Lough ; Moher Lough ; Bally- 

 nahinch. — II. Lough Guitane ; Upper Lake of Killarney ; Ken- 

 mare. 



Porma pentagona. 



I. Derryclare Lough. — II. Carrantuohill ; near Lough Brin. 



tVar. subgracile, Wittr. {Om Goth och 01. Sotv. Alg. 

 p. 51.) [S. crenulatum, Naeg.~\ 

 Porma pentagona. 

 I. Derryclare Lough ; Lakes E. of Lough Bofin. 



GO. S. gkacile, Balfs. {Brit. Desm. p. 136, tab. 22. fig. 12.) 



Porma trigona. 



