92 TRANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



Tribe III. — Vaginariese. 

 Microcoleus chthonoplastes, Thur. 

 Point of Ayr. 



Section II. — Heterocystece. 

 Order II. — Rivulariace^e. 

 Tribe II. — MastichotricheEe. 

 Galothrix confervicola, C. Ag. 



Hilbre I. !, Puffin I. !, I. of Man, Anglesea. 

 C. pulvinata, C. Ag. 



Puffin I. ! 

 G. scopulorum, C. Ag. 



Puffin I. ! 

 Riuularia biasolettiana, Menegh. 



Eastham!, Hilbre I.!, Point of Ayr. 

 B. atra, Both. 



Hilbre I., Mersey, Anglesea. 



Order V.— Nostochace,e. 

 Anabcena torulosa, Lagerh. 



{Sphcerozyga carmichcelii, Report I.) 

 Eastham, Point of Ayr, Anglesea. 

 Nodularia Jiarveyana, Thur. 

 Point of Ayr. 



Series II.-CHLOROPHYCE^. 

 Cohort II.— CONFERVIN^E. 

 Order I. — Blastosporace^e. 

 Prasiola stipitata, Suhr. 

 Hilbre I. ! 



Order II. — Ulvace^s. 

 Monostroma grevillei, J. Ag. 



Puffin I. ! , I. of Man ! . Enteromorpha intestinalis, 

 var. cornucopia, Ahln. recorded from the I. of 

 Man, is only a form of this species. 

 Dip/onema confervoides , Holm, et Batt. 

 Point of Ayr. ' 



