110 MB, W. WEST ON THE FBESHWATER 



i 



8. QEdogonium calcareum, Cleve. (Wittr. Monog. (Edog. 

 p. 32.) 



I. Lough Aunierin ; Ballynahinch. 



9. <E. sp. 



Crass, cell, veget 9-5-10 /x; altit. 3|-5plo major; 



„ oogon 30 fi; „ 28 /x ; 



„ oospor 26 fiy „ 25 fM. 



„ membr. oospor. 2*5-3^. 



II. Upper Lake of Killarney. 



This is probably (E. pachydermatosporu??i, Nord. (Alg. 

 Sandv. p. 21, tab. 2. figs. 13-15), but it was only seen in small 

 quantity ; the oogonia observed were solitary and had a superior 

 pore ; the oospores had the thick membrane of this species. 



10. <E. Pringsheimii, Cram. (Wittr. Monog. (Edog. p. 33.) 

 Crass, cell, veget.... 14-16//; altit. 2|-3|plo major; 



„ oogon 37-40 /x; „ 37^2 /x; 



„ oospor 32/x; „ 32/x. 



I. Ballynahinch. 



11. (E. punctatostriatum, Be Bary. {Wittr. Monog. (Edog. 

 p. 34.) 



I. Lough Derryclare; Lakes, Clifden to Eoundstone. — II. 

 Upper Lake of Killarney. 



12. CE. lo^di sense, Wittr. {Monog. (Edog. p. 39.) 

 Crass, cell, veget.... 10'5-11'5/x; altit. 4-5plo major; 



„ oospor 35 fM; „ 35 /x. 



I. Derryclare Lough. 



tfVar. compeessitm, nov. var. (PI. XVIII. figs. 10-12.) 

 Var. oogoniis singulis compresso-globosis ; oosporis compresso- 



globosis, membrana glabra punctatave ; cellulis vegetativis 



minoribus. 



Crass, cell, veget.... 9-10 /x ; altit. 2|-4|plo major; 



» oogon 32-37 /x; „ 25-27 /x; 



„ oospor. 30-32 /x; „ 22-25 fx. 



II. Upper Lake of Killarney. 



13. (E. sp. 



Membrana distincte punctata. 



Crass, cell, veget. 30 /x; altit. 1-l^plo major. 



II. Lower Lake of Killarney. 



