278 Marine Alyai of Berwick-on-Tweed. 



Syn. Capsicarpella sphyerophora, Kjellm., Skand. Ect. och Tilopt., p. 

 20, t. I., fig. 2 ; Aresch., Alg. Scand. Exsicc, no. 414. 

 Ectocarpus sphasrophorus, J. Ag., Spec. Alg. i., p. 17 ; Farlow, 

 Mar. Alg. New Eng., p. 74. 

 Hah. On Ptilota elegans, Callithamnion polyspermism, and other small 

 Algae between tide-marks. April — June. Very rare. Kocks 

 north of the Coves, Burnmonth. 

 In the present genus the plurilocular sporangia are formed in 

 the continuity of the branches, while the unilocular sporangia 

 are only partially immersed in them. The genus thus forms a 

 link between Ectocarpus and Pylaiella. 



PYLAIELLA, Bory. 



Pylaiella littoralis (L.) Kjellm. 



Skand. Ect. och Tilopt., p. 99. — Conferva littoralis, L., Spec. 

 Plant, p. 1165. 

 Descr. Ectocarpus littoralis, Rarv., Phyc. Brit.; Farlow, Mar. Alg. New 



Eng., p. 73. 

 Fig. ,, ,, Harv.. I.e. pi. 197; Farlow, Mar. Alg. New 



Eng., pi. vi., figs. 3 and 4. 

 Exsicc. ,, ,, Wyatt, Alg. Danmon., no. 129. 



Ectocarpus firmus, Le Jol., Alg. Mar. Cherb., no. 68 ; Crouan, 

 Alg. Einist., no. 30. 

 Syn. Ectocarpus littoralis, Lyngb., Hydr. Dan., p. 130 ; J. Ag., Spec. 

 Alg. i., p. 18 ; Ktz., Spec. Alg., p. 45S. 

 Ectocarpus siliculosus, Chaw., Alg. Norm., no. 10 et SG (var. 



ferruginens.) 

 Ectocarpus Thuretii, Le Jol., in Mem. Soc. Sc. Nat. Cherb. II., p. 



206. (planta sporangiis uniloculaiibns.) 

 Ectocarpus firmus, J. Ag., Spec. Alg. i.,p. 23 ; Le Jol., Liste, p. 78. 

 Ectocarpus siliculosus, var. firmus. Ag., Spec. 



FuiuiA compacta, Ag. 



Syn. Ectocarpus compactus, Ag., Spec. Alg. n.,p. 41 ; Le Jol., Alg. Mar. 



Cherb., no. 87. — Ceramium compactum, Roth., Cat. Bot. 

 Hah. On Fuci and other Algae, also on rocks, between tide-marks. All 



the year. Very common. Forma compacta, on rocks north of 



Dodd's Well, where fresh water runs into the sea. The typical 



form everywhere along the coast. 



