294 Marine Algce of Berwick-on-Tweed. 



Descr. Mesogloia virescens, Harv., Phyc. Brit. 



Fig. ,, „ Harv., I.e. pi. 82; Farlow, Mar. Alg. New 



Eng., pi. 7, fig. 1. 

 Exsicc. „ ,, Wyatt, Alg. Damn., no. 49 ; Crouan, Alg. 



Finist., no. 52. 

 Castagnea virescens, Le Jol., Alg. Mar. Cherb., no. 103 ; Aresch., 



Alg. Scand. Exsicc., no. 315. 

 Syn. Mesogloia virescens, J. Ag., Spec. Alg. i., p. 56 ; Etz., Spec. Alg., 



p. 545. 

 Eudesme virescens, /. Ag., Alg. Sysfc. 2, p. 29 ; Kjellman, Alg. 



Arct. Sea; Stromf., Algveg Island, Kust. 

 Hah. On sand-covered rocks and stones in puddles from half -tide level 



to low-water mark. Spring and Summer. Fruit June — Aug. 



Not uncommon. Berwick Bay, Sharper Head, Burnmouth. 



Family— A s perococcaceae. 

 ASPEROCOCCUS, Lamour. 



Asperococcus echinatus (Ag.) Grev. 



Alg. Brit., p. 50, t. 9. — Eacoelium echinatum, Ag., Syst., 

 p. 261. 



F. TYPICA. 



Descr. Asperococcus echinatus, Harv., Phyc. Brit. 



Fig. „ „ Harv., I.e. pi. 194 ; Farlow, Mar. Alg. 



New Eng., PI. v., fig. 3. 

 Exsicc. ,, „ Le Jol., Alg. Mar. Cherb. no. 1 ; Crouan, 



Alg. Finist., no. 60. 

 Asperococcus fistulosus, Wyatt, Alg. Damn., no. 7. 

 Syn. „ „ Hook., Br. Fl. II., p. 277 ; Harv., in Mack., 



Fl. Hib., part 3, p. 175. 

 Asperococcus rugosus, Lamour., Ess., p. 62. 

 Scytosiphon filum var. fistulosum, Ag., Spec. I., p. 163 ; Ag., Syst., 



p. 258. 

 Conferva fistula, Both, Cat. Bot. in.', p. 169. 

 Enccelium echinatum, Ktz., Phyc. Gen., p. 336 ; Spreng., Syst. 



Veg. iv., p. 328. 

 Asperoeoccus echinatus ; J. Ag., Spec. Alg. 1, p. 76 ; Johnston, Fl. 



Berwk. n., p. 248. 

 Fistularia attenuata, Grev., Fl. Edin., p. 300. 

 Ulva fistulosa, HooTc., Fl. Scot, n., p. 92. 

 Hob. On Algae in shallow pools between tide-marks, also on stones and 

 shells. Common. April — Sept. Berwick Bay, Burnmouth, 

 Scremerston, Holy Island, and elsewhere along the coast. 



