Marine Alga of Berwick-on-Tweed. 



Enteromorpha minima, 



In Ktz., Spec. Alg., p. 482. 

 Descr. Enteromorplia minima, Ahln., Enteromorph., p. 48. 

 Fig. „ „ Ktz., Tab. Phyc. vi., t. 43 ; Ahln. I.e., 



fig. 8. 

 8yn. „ „ J. Ag., Till. Alg. Syst. vi., p. 135. 



Hab. On rocks and timber near high-water mark. Rare. Berwick 



Bay. Spittal. 

 A small species, from quarter to half an inch. long. The fronds 

 almost simple, tubular, obtuse at the apex. The cells composing 

 the frond minute. 



ULVA., Linn. (Green Laver, Oyster-Green.) 



Ulva iactuoa, Linn. 



Spec. Plant, n., p. 1 163, and Le Jol., Liste Alg. Mar. Cherb., 

 p. 38. 

 Dsticr. Ulva lactuea, Bo met et Thuret, Etud. Phycol., p. 5. 

 Fig. „ „ Bornet et Thur., I.e. t. 2. et 3. 



Fxsicc. Ulva latissima, Wijatt, Alg. Danmon., no. 33. 

 Syn. „ ,, Harv., Phyc.Brit., p. 171 ; J. Ag., Till. Alg. Syst. 



Vi., p. 164; Johnston, Fl., Berwk. n., p. 250. 

 Ulva rigida, Ag., Spec. Alg. 1., p. 410 ; .7. Ag., Till. Alg. Syst. VI., 



168, t. 4. fig. 119-122. 

 Ulva myriotrema, Desmaz. Zanard., Icon. Phyc. Adr. I., p. 173. t. 



40. 

 Phycoseris rigida, australis, gigantea et myriotrema, Ktz., Sp. 

 Alg. et Tab. Phyc. 

 Hob. In pools between tide-marks. Summer and Autumn. Everywhere 



common. 

 This species is the Ulva latissima of " Phycologia Britannica," 

 not the U. lactuea of that work. 



Family— C onfervacca, 



EPICLADIA, Fveinke. 



Epicladia Flustr^e, Rhe. 



Atlas deutscher Meeresalg. taf . 24 ; Algennora der westlichen 

 Ostsee Deutschen Antheils., p. 86. 

 Hab. Epiphytic on Flustra truncata, etc. Not uncommon. 



