52 i;i;iTisu URSMIDIACE^:. 



Length 33-35 /u ; breadth 15 ju. 



ENGLAND. W. Yorks ! Leicester (Roy). Hants (7iV>//). 

 Cornwall ! 



WALES. Capel Curig (Roy), Moel Siabod ! , Llyn 

 Idwal ! , Glyder Fawr, at 2,300 ft., Carnarvonshire ! 



SCOTLAND. Ross, Inverness, Aberdeen, Kincardine, 

 Forfar, Perth, Renfrew (Rot/ Sf Bissdt). 



IRELAND. Dublin and Wicklow (Archer). 



Geoyr. Distribution. France. Germany. Galicia 

 and Austria. Norway. Faeroes. India. United States. 



Var. micrococcum (Kiitz.) West & G. S. West. (PI. 



IV, figs. 1-3.) 



Palmoglcea micrococca Kiitz. in Bot. Zeitung, 1847, p. 221 ; Tab. Phycolocf. 



1847, I, p. 20, t. 25, f. 5 ; Spec. Alg. 1849, p. 229 ; Eabenh. Flor. Europ. 



Alg. 1868, III, p. 116. 

 Mesotxnium Braunii De Bary, var. minus De Bary, Conj. 1858, p. 74, t. 7 A, 



f. 9-11. 

 Mesotsenium micrococcum Kirchn. Alg. Scliles. 1878, p. 134; West, A I-. 



W. Ireland, 1892, p. 131. 

 M. macrococcum var. micrococcum West & G. S. West, Alga-fl. Yorks. 



1900, p. 41. 



Cells shortly cylindrical, 1^-2 times longer than 

 their diameter, slightly attenuated towards the apices 

 which are rounded. 



Length 13'5-16'6 p ; breadth 8-4-1O2 p. 



ENGLAND. --Stickle Tarn, Westmoreland! Near 

 Giggleswick, W. Yorks ! Near Selby, E. Yorks ! 



WALES. Glyder Fawr (at 2,200 ft.), Carnarvonshire ! 



SCOTLAND. Cairngorm, Inverness ; Dalbagie, Aber- 

 deen (Roy Bissett). 



IRELAND. Lakes, from Clifden to Roundstoiie, Gal- 

 way ! 8 miles S. of Kenmare, Kerry ! 



<!<><>(jr. Distribution. France. Germany. Austria. 

 Norway. Poland. Faeroes. United States. West Indies! 



4. Mesotaenium chlamydosporum De Bary. 

 (PI. IV, figs. 4-14.) 



Mcsotxnium chlamydosporum De Bary, Conj 1858, p. 75, t. 7 D ; Nordst. 

 Index Desnaid. 1896, p. 73 ; West & G. S. West, Alga-fl. Yorks. 1900, 

 p. 42. 



