Marine Algce of Bevwick-on- Tweed. 353 



f. affinis (Moore.) Harv. 



Ner. Bor. Am., J. Ag., Spec. Alg. — Polysiphonia affinis, 

 Harv., Phyc. Brit., pi. 303. 

 Hab. On rocks near low-water mark. Rare. Berwick Bay. 



Polysiphonia parasitica (Huds.) Orev. 



Fl. Edin., p. 309. — Conferva parasitica, Huds., Fl. Angl., 

 p. 604. 



Descr. Polysiphonia parasitica, Harv., Phyc. Brit. 

 Fig. „ „ Harv., I.e. pi. 147. 



Exsicc. „ „ Wyatt, Alg. Danm., no. 175 ; Crouan, 



Alg. Mar. Finist., no. 315. 

 Syn. „ ,, J- Ag., Spec. Alg. n.. p. 930. 



Hutchinsia parasitica, Ag., Syst., p. 147 ; Ag., Spec. Alg. n., 



p. 103. 

 Hutchinsia Mostingii, Lyngb., Hydr. Dan., p. 116, t. 36. 

 Hob. On rocks near low-water mark, usually on the chalky crusts 



formed by Lithothamnion polgmorphum ; also on Laminaria 



stems. Fruit June — Aug. Berwick Bay, Burnmouth, Holy 



Island. 



Polysiphonia byssoides (Good, et Woodw.) Grev. 



Fl. Edin., p. 309. — Fucus byssoides, Good, et Woodw., Linn. 

 Trans, in., p. 229. 

 Descr. Polysiphonia byssoides, Harv., Phyc. Brit. 

 Fig. „ „ Harv., I.e. pi. 284. 



Exsicc. ,, „ Wyatt, Alg. Danm., no. 85 ; Crouan, Alg. 



Finist., no. 316. 

 Syn. „ „ Ktz., Spec. Alg., p. 834 ; J. Ag., Spec. 



Alg. ii., p. 1042. 

 Hutchinsia byssoides, Ag., Sp. Alg. n., p. 99. 

 Conferva byssoides, Eng. Bot., t. 547. 

 Hab. Cast ashore from deep-water during the summer months. Fruit 

 June— Aug. Frequent. Berwick Bay, Holy Island. 



BONNEMAISONIA, Ag. 



BONNEMAISONIA ASPAKAGOIDES (Woodw.) Ag. 



Spec. Alg. i., p. 197. — Fucus asparagoides, Woodw., in Linn. 



Trans, n., p. 29, t. 6. 

 Descr. Bonnemaisonia asparagoides, Harv., Phyc. Brit. 

 Fig. „ „ Harv., I.e. pi. 51. 



Exsicc. „ ,, Crouan, Alg. Finist., no. 276. 



Syn. „ „ Ktz., Spec. Alg., p. 843 ; Id., Tab. 



Phyc. xv., t. 32 ; J. Ag., Spec. Alg. II., p. 779. 



IT 



