ALGJB OF WEST IRELAND. 109 



5J 



ttForma major. (PI. XVIII. fig. 1.) 



Crass, cell, veget 11-11/5 /x ; altit. 2-3 plo major ; 



„ „ suffult. ... 12*5 /x; „ „ 



» oogon 26 /x; „ 16 xx ; 



„ oospor 28/*; „ 13/i. 



L Ballynahinch. 



f3. (Edogo^ium longicolle, JVordF. (Ala. Aauce dul 



Alg. et Char. i. p. 13, tab. 16. fig. 23). 



Crass, cell, veget.... 4*5 tx ; altit. 3plo major; 



„ oogon 16-18 /x; „ 18-23 /i ; 



„ oospor 16 xx ; „ 11 /x. 



II. Upper Lake of Killarney. 



Wittr. Monog. (Edog 



Nord, 



CE 



I. Derryclare Lough ; Lakes, Clifden to Eoundstone ; near 

 Oughterard. 



5. (E. Beaunii, Kuetz. (Wittr. Monog. (Edog. p. 22.) 

 Crass, cell, veget.... 12*5-13*5 /xj altit. 4plo major; 



„ oogon 31^; „ 35/u; 



„ oospor 27*5 ft; „ 30 /x. 



I. Clifden. 



t6. CE. suecicum, Wittr. (Monog. (Edog. p. 30.) (PI. XVI II. 

 fig. 2.) 



Crass, cell, veget 11-12 /z; altit. 6-7plo major; 



» oogon 34 ax; „ 42 fi 



„ oospor. (s. spin.) 28 /x ; „ 39 /x. 

 I. Ballynahinch. 



tt7. GE. pilosporum, nov. sp. (PL XVIII. fig. 3.) 



(E. (dioicum ?) ; oogonis singulis oblongo-ellipsoideis inflatis, 

 utroque polo paullum productis ; oosporis subglobosis, membranis 

 crassis et dense pilosis cumpilis brevibus; cellula basali simile aliis. 



Crass, cell, veget 11-12 /x 



„ oogon 23 /x 



„ oospor. (sine acul.) 17 /i 



„ „ (cum „ ) 19 /x 



„ membr. oospor 2/x. 



I. Arderry Lough. 



altit. 5-6plo major; 

 „ 48 xx ; 



„ 18m; 



„ 21/1. 



The oospores of this species showed indications of an apical 

 operculum, but an open one was not seen. 



