Marine Algui of Benuick-on-Tweed. 315 



he gave the name Chlorochytrium inclusion* Harvey seems to 

 have mistaken it for an abnormal form of the fructification of 

 Cruoria adhcerens.] 



CKUOKIA, Fries. 



Cruoria pellita (Lyngb.) Fries. 



Fl. Scan., p. 316. — Ciuetophora pellita, Lyngb., Hydr. Dan., 

 p. 193, t. 66. 

 Descr. Cruoria pellita, /. Ag., Spec. Alg. n., p. 491. 

 Fig. „ „ Le Jol. ,Liste. Alg. Mar. Cherb., pi. iv.,figs. 1-2-3 ; 



Tab. Nost. xi., fig. 5. 

 Exsicc. „ „ Le Jol., Alg. Mar. Cherb., no. 106. 



Cruoria adherens, Crouan, Alg. Finist., no. 234. 

 Syn. ,, „ Orn. in /. Ag., Spec. Alg. n., p. 491. 



Nemalion adherens, Cm., Flor. du Finist., p. 146. 

 Cruoria pellita, /. Ag., Epicr. p. 377 (non Earv. nee. Ktz.) 

 Hab. On rocks near low-water mark ; also on the stems of Laminaria 

 hyperborea. Fruit Jan. and Feb. Hare. Sharper Head, Near 

 the Coves. 

 Except under the microscope this species cannot be dis- 

 tinguished from Petrocelis cruenta or P. Uennedyi. Like them it 

 forms glossy, dark red or purple crusts on rocks or the stems of 

 Laminaria hyperborea. The frond is composed of simple, or more 

 or less forked, vertical filaments, which are loosely united and 

 easily separable under pressure. The large, oblong, zonate 

 tetraspores are attached to the sides of the filaments,'! * ne 

 cystocarps, which with us are much more rarely found, are com- 

 posed of a few large spores arranged in one or two rows, (vide 

 Plate xi., fig. 5. 



HiEMATOOELIS, J. Ag. 



HiEMATOCELis fissurata, Crouan. 



Flor. du Finist., p. 148, pi. 19, fig. 127. 



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



In January 1887, and again last January, I gathered at 

 Berwick specimens of a plant which seems to be Orouan's 



* Kjellman, Alg. Arct. Sea, p. 320. 



t Harvey, Nat. Hist. Rev., vol. iv., p. 203. 



X I have never seen pedicellate tetraspores as represented by Harvey and 

 Crouan, all my specimens exactly agreeing with Le Jolis' figure, referred 

 to above. 



